“Adobe Photoshop cs3, cs4 has stopped working”.
If you are getting this error message, chances are that your preferences profile is corrupted. Here are steps to fix it:
1. Please press the following keys in the right order
crtl + alt + shift and then click on the Photoshop icon
2. The following pop pup will show up
Just click on “delete” and that should fix it.
Reference
http://forums.adobe.com/thread/424213