i had this happen to me friday and sat as i was trying to get some stuff done. Would start and crash. Would go to save anything it would crash - even a blank document (was getting desperate). Also happening when i went to import and image and it wasnt a large image at all - under 1 meg.
not sure if it was on here but i saw somewhere where it said to open the preference manager and load the default settings. You will have to re-orgainize your design space again - add toolbars etc that you want showing but other then that it worked for me and things are running back to normal. Didnt change the printer or cut settings at all - same profiles etc that i used before when i went to rip and print and cut just the design space needed to set up again.
Hope this works for you - but i was having the same kind of issues and its working again.