My mother-in-law's computer is a Dell pc that was directly connected to the cable modem ( not behind a router ). She says recently she IM'd someone on Yahoo messenger, left the computer for a few hours and came back to a screen that says no HDD found. I had her get into her bios and it said it couldn't recognize a primary hdd to boot from. I suspect a hacker that might have messed with the hdd driver, but I'm not certain and I haven't seen her computer yet. I plan on seeing her this Tuesday, and I will probably boot from the XP CD and attempt to download the driver. Do you have any other suggestions that I might consider?