kureme, if your drive is working in your desktop, but not in your laptop, it is a boot sector error i would think, and for some reason your desktop is getting around it. Try using the tips on this site
Fix Boot Sector in your desktop to try and fix the problem. You may have to format and reinstall.
madtown If you are having the same issues then try the above as well, but if the drive is not working in your desktop as well, it is possible the drive has failed do to improper grounding during the installation.
*hope this helps, if not post again with the results
