--- a/Toolbox/Startup.py	Fri May 30 13:17:20 2014 +0200
+++ b/Toolbox/Startup.py	Fri May 30 15:16:40 2014 +0200
@@ -129,7 +129,7 @@
         if iconPath:
             UI.PixmapCache.addSearchPath(iconPath)
     for defaultIconPath in defaultIconPaths:
-        if not defaultIconPath in iconPaths:
+        if defaultIconPath not in iconPaths:
             UI.PixmapCache.addSearchPath(defaultIconPath)