http://www.videoforums.co.uk/adobe-p...7-crashes.html
Read all this thread , it may help
To recap, I have been one of the people unable to work with PE7 due to its ability to freeze at the drop of a hat. It now works but only after a lot of grief (six months with no video editing capability) Previously I used PE2 before upgrading to PE7 and when they work they are terrific pieces of software
You pays your money.....................