rootbear-make sure you have .net framework installed. i'd also use the bin/debug/testgrounds.exe one edit: ok, i added sam's changes. thank you! i also added some textbox's to change the settings while using it. from top to buttom these are what they are top textbox-slipperiness. the higher this number the more slippery. 1 there is no friction. middle - dividerate. sord of confusing just mess around with it. pretty much determines how far it is thrown, 1 being farthest. buttom - minlimit. determines when to stop moving the form, otherwise it would continue forever, moving ever so slightly. have fun messing around TestApp.zip