I was having problems with quickpar and newsbin pro, all files were corrupted or missing. i ruled out application and OS errors so i decided to test my ram with a microsoft ultility. One test failed. So i tested the sticks individually, both fine. So i then put them in dimm 1 and 2 and everything was fine. I only get errors when in dimm 3. Do you think mt new motherboard is duff? Its a gigabyte ds3 and im using kingston 667mhz ddr2 ram. I havent checked if that was causing my corrupted downloads yet though, but if the mobo is duff i can send it back. thanks for reading.