I have a HP dv9626us Pavillion laptop, it will not reconize the cd/dvd rom drive, I took a working drive from my wifes laptop and it is not reconized either and the one from my laptop works in her's. Figuring it was a driver problem I reloaded to factory deafults with the recovery CD's. Drive still will not work. also I recently updated bios so I returned the laptop to the previos bios. Still will not work. What should I check next?? Drive has poer and will open and spin up with a disc when installed in my system but is not reconized by my PC. VIST 32bit home permium is the installed OS the the laptop shipped with.