My computer meets all the requirements. Just got PS CS5 Extended and it isn't working correctly. When I hit new, it won't pop the new screen up. If I do the shortcut Ctrl + N, it works. When I make the new file, I try to use the paint tool, and after I paint a line, it will auto erase. If I do successfully paint a line after trying 4 or 5 times, when I try to erase a mistake it will undo the erase automatically. I have tried uninstalling twice. Does anyone know what could be wrong? Do I need to update a driver on my desktop or something? Thanks.