Hello all. I hope some of you tech savvy people might be able to help me figure this out ... My specs: XP Pro Service Pack 3 Intel Core2Duo E8400 (running at 35c idle) MSI MS-7267 MB, i945G chipset, 2 gigs DDR2 onboard graphics--Intel 82945G chipset Xfi audio card Relevant (hopefully) history: My old video card started to die on me ... graphic corruption in games, then some graphic corruption even in the BIOS while booting up ... pulled the card, switched to onboard video--no more graphic corruption. So far so good. A couple days later I swap out my old Core2Duo 6500 CPU for the E8400 ... I tried to keep my old heatsink, since it was better than the one that came with the E8400, but I couldn't manage to mount it ... discover that the plastic feet are splayed and won't fit in the holes in the motherboard. Hope that I didn't damage the motherboard. Switch to default heatsink, install CPU, boot up, all goes well, temps are good ... but the new CPU is not running at the correct speed. Instead of running at 3.00GHz, it is running at 333x6, or 2.00GHz, even under load. Can not find a way in the BIOS to set it to the correct speed ... Then my PC starts randomly locking up. Mouse freezes, can't control/alt/delete ... nothing. Have to flip the on/off switch to restart it. This sometimes happens while booting up, sometimes it happens after a couple of hours of normal use ... I tried flashing the BIOS to see if that would get the MB to set my CPU at the correct speed but the MSI BIOS flasher won't work ... I'm not sure how to trouble shoot this and it's getting a little frustrating .... Any ideas? Theories? Questions? Any input most welcome!