@mc101 said: finally found the problem!! All it took was the right search and bingo I found the files that were causing the problem... for some reason they hadn't been uninstalled and were hiding out deep within my system's file structure. They're all gone now and I can finally use Sketchy Physics! Is this the solution you mentoned? http://www.sketchucation.com/forums/scf/viewtopic.php?f=180&t=9543