Weird MSP7 Timeline Problem

[tnpir4002]

Something really weird with an MSP7 timeline...anybody else ever seen this?

So I have a large timeline that I've been working on for a good long while now. It's a big one (3oMB in fact) so I'm used to it taking a minute or two to open. Recently though, it suddenly started taking a lot more time to open--hours instead of minutes.

I've narrowed the problem down to something having to do with Smart Relink. I copied the timeline to a computer not connected to my content drive, and the timeline popped right up and prompted me immediately for the first missing file. I opened that exact same file on the computer connected to the content drive, and the timeline opened, but then the program locked up and began eating up a ton of memory and seemingly not doing anything.

Any ideas what the problem might be and what I can do about it?