Hello, I did a fresh install just now... my MS Intellimouse Explorer 2.0 mouse is not working. I tried re-syncing it with the dongle to no avail. It gives me a warning saying that some functions may not work until a USB or bluetooth mouse is installed. I downloaded the Win7 beta drivers (both keyboard and mouse) from MS.com, no dice.. I uninstalled them both and tried the vista drivers with the same result. Odd thing is, it doesn't even show up in the devices menu under my computer, nor in the mouse profile under the hardware tab. I'm dual booting with my XP machine and the mouse works perfectly. Any guidance? using the keyboard to tab around is very cumbersome. TIA 8 views? Does anyone have any sort of idea, or suggestion? I'd really like to experience this new version of windows with a mouse.