Group policy oddity

Experts

This is a funny one. We have one machine at a client who's machine behaves oddly, to me at least.

When someone doesn't login for around 10 days, when the user finally does log in it looks like everything on their profile is lost and things need to be entered in again.

While typing this I had a brainwave and thought maybe its a roaming profile not syncing fully. But the user hasn't mentioned anything about the error message with a temporary profile.

So I was wondering if there was something to do with a group policy to say "when idle, clear profile cache" or something of the sort.

Any pointers appreciated,

Cheers