Lately, when shutting down Windows XP in Parallels, Parallels Tools crashes, and this prevents Wiindows from shutting down, and I have to force-quit Parallels. I'm running Leopard 10.5, Mac Pro Quad 2.0 Xeons, 3 GB RAM. Should I try to uninstall Parallels Tools, and reinstall them? Or is this a known issue with Parallels 3.0 and Leopard?