So every so often, my Excel will lockup and not let me do anything throughout the entire program. I will be going fine, then boom. It normally happens when I'm editing 2003 files. I would resave them, but when I'm locked out, I can't do anything. I have a legit copy of 2007, so it's not due to pirating.

I've seen on line some people saying addins or Google Desktop but I don't have Google Desktop and I can't do anything about the addins since it's locked out. Anyone have any solutions I can try? I may just start killing processes in my task manager.