Hello all! I regularly have the folllowing line appear when my bios starts up - CMOS checksum error - defaults loaded. It seemed to start happening when i downloaded spybot search&destroy. I have since removed the program but still have the problem. I have changed the cmos battery on the mobo as recommended in other threads, but it still regularly (every few start ups) happens. Any advice to solve the problem? The board is only six months old. CPU and RAM test fine. I have two hard drives, non raid, sata connection.