I had this problem too. What I ended up doing is this: Uninstall everything (DAO, Guide+, MMC). Go to ATI's web site and get the latest files they have. They have 3. Also get WME 9 and DirectX 9.0x. Then install DirectX 9.0c, WME 9, DAO, TV Wonder VE Drivers, MMC. It worked as far as th lock-up...