I was running XP (guest OS) on my Macbook Pro just fine under 10.5 Leopard (host OS) and Parallels Desktop for Mac 4.0 I then upgraded my OS to 10.6 (Snow Leopard) and now I canot startup my Virtual Machine (XP). I am running a Macbook Pro in 32-bit mode. My OS is 10.6.1. Parallels Desktop for Mac is build 3838. Upon trying to start my VM I get the following error message: "Unable to start the virtual machine. An unexpected error occured while starting the virtual machine. Contact the Parallels support team for assistance." Then another error pops up as soon as I hit the OK button: "Unable to load the Parallels driver. Restart your Mac and try again." I've restarted my computer several times. I've made sure I'm running the most current version of Parallels Desktop. Please tell me what I can do in order to get Parallels back up and running. Thanks in advance.