yeah, i suggested to him that his extension cord might not be working properly, but he insists it is and that its running his old computer at present... the suggestion that his house is wired back to front nearly got my head bitten off also... I'm going to replace the PS and see if it makes any difference, pulling at straws now as the current PS works fine, at least in my environment... Any profit i made on this computer has long since gone with the time i've already spent testing this thing only to find nothing wrong! Computers, gotta love 'em...