We have groupwise 8 installed. Most of our clients are XP. We just got some new hardware running windows 7 professional SP1. For some reason, the mounted filesystems appear to randomly have no link. Windows explorer shows them with a red X over the drive looking icon. You get "cannot access" when you click on them. You can log out and log back in and they are then ok. Any ideas what could be happening or how to diagnose a problem (and how to fix)?