I know this is an old thread but in case anyone finds it in a search, the same thing happens in Poser 8 with Sr 3 on a Vista 64 bit machine for me (and I've seen it reported on another thread at DAZ for someone with Poser 8 and Sr 2 and Vista 64 bit). In my case I don't have outlook running.

I've got the latest patch for Poser 8 (8.0.3.11793) and I keep my OS up to date as well. Unfortunately I haven't used Poser for a while so I've taken lots of upgrades to things (e.g. Java, Flash etc...) that all might be the triggering the problem. It's a frustrating issue. Will post here again if I find a solution that works for me (can't help but feel that whatever else Poser might be clashing with, at bottom this is Poser's fault)