--- solarwolf-1.5.old/code/stars.py
+++ solarwolf-1.5/code/stars.py
@@ -33,9 +33,12 @@
         numstars = self.numstars + change
         numstars = max(min(numstars, self.maxstars/2), 0)
         if numstars < self.numstars:
-            DIRTY, BGD = gfx.dirty, self.last_background
-            for rect, vel, col in self.stars[self.odd][numstars:self.numstars]:
-                DIRTY(BGD(rect))
+            try:
+                DIRTY, BGD = gfx.dirty, self.last_background
+                for rect, vel, col in self.stars[self.odd][numstars:self.numstars]:
+                    DIRTY(BGD(rect))
+            except:
+                print Exception
         self.numstars = numstars
         #print 'STAR:', numstars, fps, change