I've got an assembly where I think something went wrong due to read only problems when a part was opened by another user. I'm not sure how to fix this, as my assembly now has more mate errors than I can count. I do have backups of everything in my backup folder though. The problem is that because the parts are made within the context of the assembly, when I open the back up of the assembly, none of the parts can find their necessary references (show with a question mark in the tree). Any idea on how to fix this? How should I go about opening an assembly and the associated parts from my back up location, and then saving them back out as the originals while keeping all references correct.