Crash on exit

I have a small-ish problem: sometimes when I exit from Sins, I get a message from Windows saying that Sins has made a fatal error and needs to shut down, send a report to windows etc... It only happens after I click exit the game, so no progress is lost, and it only happens occasionally, say in 35/40% of the times I stop playing; but it seems careless to ignore the issue. I'm on patch 1.05, by the way, on Windows XP. If you need me to post the DX Diag, I can post it tomorrow.