I swapped hard drives on it, to one double the size at 40GB. Installed a fresh XP straight onto it (not the recovery disks). Most of it worked fine except I just could not get the speakers/audio to work. But since the person who uses the laptop listens to a lot of music on it i need to get the audio working, either that or start again by installing the original Win2k Pro recovery discs (with working audio) and then upgrading to XP (which worked before on the old HD). So i ran out of patience and did the latter, recovered the system, and then at the end it says recovery complete, please eject cd and press any key to restart. I do so. But when it restarts it immediately displays a "Missing Operating System" message and thats it. I repeated the recovery process, same story, discs used to work fine on old 20GB drive, XP alone worked fine on 40GB drive, Recovery then XP upgraded worked perfect on old drive, so not sure what to do. To keep it short, how do i fix a Missing OS?