hi evrybody. i have a problem driving me crazy. first, my laptop is a HP 4540s. running on W7 64 bits, 2 graphic cards Intel and AMD radeon 7650. everytime i install a driver for amd, the bluescreen of death pops up with the error 116 atikmpag.sys. I've tried all the drivers i could find and none of them worked.i can install the Intel driver, but as soon as i restart windows, i've the error code 52 in the peripheral manager for both graphic cards.now my pc works without any graphic and is always heating. any idea how i could fix this?