Hi Ray, I need help! I also have the student version 2010 in windows vista. I had the same problems as Alexa, all of them, and I did everything you told here, and now i can open the program. But i still have problems to draw and see the drawings. There is something wrong with the screeen, 'cause i cannot see anything i draw, and when i open a project, i cannot see anythin, although the project is opened and all the comands are working. Besides that sometimes my screen is black! What is happenning? I'm desperate, since i have to od my thesis and the deadline is approaching...! Thank yo very much! Magna