I have a sub-assembly with parts all on the I: drive and did a pack and go so all the files to the C:. After making all my changes on the assembly/sub-assembly, I changed the sub-assembly parts references back to the I: but for some reason when I open the sub-assembly all the parts still reference points back to the C:. Even when it looks like it points to the I: is reverts back to the C:. The only sure way to make it permanent is to delete/rename/move the files in the C:. Anyone have a solution or idea what going on here?