I used to use PE7 without

I used to use PE7 without any problem with Windows XP. Now I have upgraded to Windows 7 and PE8 and still no problem. Could it be that it is a Vista problem? Certainly if you do not have enough RAM it could also cause crashes.

If you are familiar with Premiere Elements, it might be a good idea to stick with it. CS4 will place even greater demands on your system.