Ok, so im an ***** and tried to update my BIOS. I downloaded the update from the Intel official site and followed directions. The update was the type of update you can do while windows is running, so i gave it a shot not really knowing anything about what i was doing. The program ran fine, installed fine i guess, and was restarting my computer. It took awhile to log off, but i sat and watched it until it powered down. Computer rebooted, and i get a CMOS Checksum Bad Error. My motherboard is an Intel D845PT. Ive tinkered with the BIOS for ages, and even tried the IFlash BIOS update with a floppy, only to find out this model of MOBO doesnt even use Iflash, or its not compatible. And yes, im using a fairly new CR2032 Battery. MY COMPUTER BOOTED JUST FINE, AND WORKED JUST FINE BEFORE REBOOTING TO UPDATE BIOS! Anyone have any ideas how to fix this?