Thanks Josh, Trashed the prefs and so far it is rock solid, I have always been hesitant to install new software and RAM on a system that is working fine, but had a good year and needed to get some money off the books, so I figured I would make some perfomance upgrades. When I encountered this problem on my first session since the install, I was cursing myself pretty heavily. Thanks for the suggestions, they seem to have worked, any thoughts to as "why" this kind of thing could happen.