Not exactly the same issue, but I've been experiencing broken links on InDesign documents that are linked to the server. We have a central library for assets, and it seems that every time I open a document on my desktop (which had up-to-date links the last time I had it open, and the servers are mounted) the images have to be re-linked. I don't see this happening when the document is linked to assets on the local drive.
Anyone else notice this?