Win7 RC freezes

Hey! I recently installed Win7 RC to my laptop and am facing a problem now. Sometimes when I plug in an USB Hard-drive or a ZEN MP3 player, the system does a full lock-up.

I had 7 Beta on the laptop earlier and it had no problems whatsoever. Anyone else experienced/solved similar problems or should I just go try and reinstall?

Did you do a clean install or did you upgrade?
- Sergio

It's a clean install.

Okay, have you tried to downloading drivers from your Manufacturer website?

- Sergio

...or running Windows Update and downloading any drivers found there...