Every time I click on a gray scrollbar and drag to scroll, Windows 7 freezes. I notice this most in explorer (first happened in control panel), and it seemed to be just a problem with any scrollbar in explorer, but then it happened in OpenOffice too. In Firefox however, there doesn't seem to be a problem. I have just installed Windows 7 RC (32-bit) on my brand new computer, so surely not a virus/malware issue. All drivers up to date. My Mobo (see below) has f4a BIOS.
I'm able to reset or hard shutdown. Cannot Ctrl+Alt+Del.
GIGABYTE GA-MA790XT-UD4P AM3 DDR3 AMD 790X ATX AMD Motherboard
AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor
4x1GB DDR3 1333 RAM
PNY VCG981024GXEB GeForce 9800 GT
Logitech G5 Laser Mouse