diff --git a/ctf/histogram.py b/ctf/histogram.py
index 8afe39a..b7341d2 100755
--- a/ctf/histogram.py
+++ b/ctf/histogram.py
@@ -21,7 +21,9 @@ def main(s=None):
 
     catscores = {}
     for cat in s.categories():
-        catscores[cat] = s.cat_points(cat)
+        score = s.cat_points(cat)
+        if score:
+            catscores[cat] = score
 
     scoresfile = tempfile.NamedTemporaryFile('w')
     fn = scoresfile.name
@@ -38,6 +40,8 @@ def main(s=None):
         scoresfile.write('\n')
 
     for when, cat, team, score in s.log:
+        if not cat in catscores:
+            continue
         if when > now:
             if now:
                 write_scores(now)
@@ -59,7 +63,7 @@ set border 3
 set xtics nomirror
 set ytics nomirror
 set nokey
-set terminal png transparent size 640,200 x000000 xffffff
+set terminal png transparent size 1200,400 x000000 xffffff
 set output "%(pngout)s,tmp"
 plot %(plot)s\n''' % {'plot': ','.join(plotparts),
                       'pngout': pngout})
diff --git a/ctf/points.py b/ctf/points.py
index 5099550..ea0249c 100755
--- a/ctf/points.py
+++ b/ctf/points.py
@@ -167,6 +167,8 @@ class Storage:
     def team_points(self, team):
         points = 0
         for cat, tot in self.points_by_cat.items():
+            if not tot:
+                continue
             team_points = self.team_points_in_cat(cat, team)
             points += team_points / float(tot)
         return points
diff --git a/ctf/scoreboard.py b/ctf/scoreboard.py
index 4d25594..1c009ec 100755
--- a/ctf/scoreboard.py
+++ b/ctf/scoreboard.py
@@ -3,6 +3,7 @@
 import cgitb; cgitb.enable()
 import os
 import sys
+from cgi import escape as quote
 from . import config
 from . import teams
 from . import points
@@ -14,6 +15,7 @@ def main():
     s = points.Storage()
 
     categories = [(cat, s.cat_points(cat)) for cat in s.categories()]
+    categories = [(c, p) for (c, p) in categories if p > 0]
 
     print('Refresh: 10')
     print(config.start_html('Scoreboard', cls='wide'))
@@ -28,7 +30,7 @@ def main():
             team = open(fn).read() or house_team
             print('  <br/>')
             print('  <!-- flag: %s --> <span style="color: #%s" title="flag holder">%s</span>'
-                  % (cat, teams.color(team), team))
+                  % (cat, teams.color(team), quote(team[:15])))
         except IOError:
             pass
         print('</th>')
@@ -41,16 +43,20 @@ def main():
         total = s.team_points(team)
         totals.append((total, team))
     for total, team in sorted(totals, reverse=True):
+        if total < 0.1:
+            break
         print('<li><span style="color: #%s;">%s (%0.3f)</span></li>'
-              % (teams.color(team), team, total))
+              % (teams.color(team), quote(team[:15]), total))
     print('</ol></td>')
     for cat, total in categories:
         print('<td>')
         scores = sorted([(s.team_points_in_cat(cat, team), team) for team in s.teams])
         for score, team in scores:
+            if not score:
+                continue
             color = teams.color(team)
             print('<div style="height: %f%%; overflow: hidden; background: #%s; color: black;">' % (float(score * 100)/total, color))
-            print('<!-- category: %s --> %s: %d' % (cat, team, score))
+            print('<!-- category: %s --> %s: %d' % (cat, quote(team[:15]), score))
             print('</div>')
         print('</td>')
     print('</tr>')
diff --git a/tanks/lib/Pflanzarr.py b/tanks/lib/Pflanzarr.py
index 5291faa..017fcf1 100644
--- a/tanks/lib/Pflanzarr.py
+++ b/tanks/lib/Pflanzarr.py
@@ -40,20 +40,23 @@ class Pflanzarr:
         tmpPlayers = os.listdir(self._playerDir)
         players = []
         for p in tmpPlayers:
-            p = unquote(p, safe='')
+            p = unquote(p)
             if not (p.startswith('.') or p.endswith('#') or p.endswith('~'))\
                and p in colors:
                 players.append(p)
 
         AIs = {}
         for player in players:
-            AIs[player] = open(os.path.join(self._playerDir, player)).read()
+            qPlayer = quote(player)
+            AIs[player] = open(os.path.join(self._playerDir, qPlayer)).read()
         defaultAIs = self._getDefaultAIs(dir, difficulty)
 
-        assert len(players) >= 1, "There must be at least one player."
+        if not players:
+            self._tanks = []
+            return 
 
         # The one is added to ensure that there is at least one #default bot.
-        cols = math.sqrt(len(players) + 1)
+        cols = math.sqrt(len(players) + 3)
         if int(cols) != cols:
             cols = cols + 1
 
@@ -61,7 +64,7 @@ class Pflanzarr:
         if cols < 2:
             cols = 2
 
-        rows = len(players)/cols
+        rows = (len(players) + 3)/cols
         if len(players) % cols != 0:
             rows = rows + 1
 
@@ -97,7 +100,11 @@ class Pflanzarr:
 
     def run(self, maxTurns=None):
     
-        print "Starting new game with %d players." % len(self._tanks)
+
+        if self._tanks:
+            print "Starting new game with %d players." % len(self._tanks)
+        else:
+            return
 
         kills = {}
         for tank in self._tanks:
@@ -229,7 +236,7 @@ class Pflanzarr:
 
         # Write a blank file if the winner is a default tank..
         if winner.name != None:
-            winnerFile.write(tanks[0].name)
+            winnerFile.write(winner.name)
         winnerFile.close()
 
         resultsFile.write('\n'.join(html))
@@ -396,12 +403,12 @@ class Pflanzarr:
         try:
             file = open(self.TEAMS_FILE)
         except:
-            return {}.fromkeys(players, errorColor)
+            return {}
 
         colors = {}
         for line in file:
             try:
-                team, passwd, color = map(unquote, line.split('\t'),['']*3)
+                team, passwd, color = map(unquote, line.split('\t'))
                 colors[team] = '#%s' % color
             except:
                 colors[team] = errorColor
diff --git a/tanks/lib/Program.py b/tanks/lib/Program.py
index 2063d1f..4d287b2 100644
--- a/tanks/lib/Program.py
+++ b/tanks/lib/Program.py
@@ -29,21 +29,37 @@ functions.  If all the conditions are satisfactory (true), all of the actions
 are given as orders.  Conditions are separated by ampersands, actions separated 
 by periods. Here are some examples of AI commands:
 <pre class="docs">
-sensor(1) & sensor(2) & fireready() : fire();
-sensor(0,0)&sin(5): move(40, 30) . turretcw(50);
-sensor(4) & random(4,5) : led(1).settoggle(0,1);</pre>
+sense(1) & sense(2) & fireready() : fire();
+sense(0,0)&sin(5): move(40, 30) . turretcw(50);
+sense(4) & random(4,5) : led(1).settoggle(0,1);</pre>
 
-Your tank will check its program each turn, and attempt to the best of its
+Your tank will execute its program each turn(frame), and attempt to 
+the best of its
 abilities to carry out its orders (or die trying).  Like any military mind, 
 your tank may receive a plethora of often conflicting orders and information.  
 This a SMART TANK, however.  It knows that the proper thing to do with each
 subsystem is to have that subsystem follow only the last order given each turn.
+
+<pre class="docs">
+#Setup commands define your tank when your program compiles
+>addsensor(50, 0, 5, 1); # 0-Fire Sensor
+>addsensor(30, 0, 180); # 1-Anti-collision sensor
+
+# These commands execute each frame.  
+# Blank condition sections are true.
+         : move(90, 100).
+           turretset(0);
+sense(0) : fire();
+sense(1) : move(-100, 100)
+</pre>
 """
 
 import conditions
 import actions
 import setup
 
+import traceback
+
 class Statement(object):
     """Represents a single program statement.  If all the condition Functions
     evaluate to True, the actions are all executed in order."""
@@ -82,8 +98,8 @@ class Program(object):
             try:
                 action(tank)
             except Exception, msg:
-                self.errors.append("Bad setup action, line %d, msg: %s" % \
-                                   (action.lineNum, msg))
+                self.errors.append("Bad setup action, line %d, msg: %s, %s" % \
+                    (action.lineNum, msg, traceback.format_exc()))
 
     def __call__(self, tank):
         """Execute this program on the given tank."""
diff --git a/tanks/lib/actions.py b/tanks/lib/actions.py
index 790afab..2dc12c6 100644
--- a/tanks/lib/actions.py
+++ b/tanks/lib/actions.py
@@ -57,7 +57,8 @@ class TurretSet(Function.Function):
 
 class Fire(Function.Function):
     """fire()
-    Attempt to fire the tanks laser cannon."""
+    Attempt to fire the tanks laser cannon.  
+    It's range is 50% of your sensor range."""
 
     def __call__(self, tank):
         tank.setFire()
diff --git a/tanks/lib/conditions.py b/tanks/lib/conditions.py
index 3a6c0ac..5346a38 100644
--- a/tanks/lib/conditions.py
+++ b/tanks/lib/conditions.py
@@ -31,7 +31,7 @@ Returns True if the given toggle is set, False otherwise. """
     def __init__(self, toggle):
         self._toggle = toggle
     def __call__(self, tank):
-        return tank.toggles[toggle]
+        return tank.toggles[self._toggle]
 
 class TimerCheck(Function.Function):
     """timer(#, [invert])
diff --git a/tanks/lib/setup.py b/tanks/lib/setup.py
index 29bc861..267198b 100644
--- a/tanks/lib/setup.py
+++ b/tanks/lib/setup.py
@@ -14,7 +14,7 @@ Sensors are numbered, starting at 0, in the order they are added.
 <p>
 range - The range of the sensor, as a percent of the tanks max range.
 angle - The angle of the center of the sensor, in degrees.
-width - The width of the sensor, in percent (100 is a full circle).
+width - The width of the sensor, in degrees.
 turretAttached - Normally, the angle is relative to the front of the
 tank.  When this is set, the angle is relative to the current turret 
 direction.
@@ -53,7 +53,7 @@ starting at 0.
         if len(tank.toggles) >= tank.SENSOR_LIMIT:
             raise ValueError('You can not have more than 10 toggles.')
 
-        tank.toggles.append[self._state]
+        tank.toggles.append(self._state)
 
 class AddTimer(Function.Function):
     """addtimer(timeout)