Ive solved the crashing problem

[phaidor]

What i did is i went to drive c then program files, Google, Google SketchUp, Then plugins and deledted everything for SkeatchyPhysics. Then i downloaded it again. Then i made a symple cube and put a motor on it and made it run it was fine. Then i saves it as my test and closed sketchup for about 5 to 10 seconds and then reopend SketchUp. Opened my test again and ran it. Ran perfectly. When before it used to close after i opened it the second time and try to run it. Hope it works for someone