BIOS and see if that doesn't fix it. Make sure ALL the wires to the HD are in good condition. All that flopping around may have cause a small break in one of the them, especially in the data cable. I believe it's something other than the HD. Too bad you can't bring it back to whomever worked on it last and "break" it over his noggin.
and life goes on...
Computer is a Sony Vaio PCG-K17 Laptop running XP Home. I kept getting the message "Cannot Find Hard Drive" I opened the cover to find that whoever had worked on the computer some months ago failed to re-install the metal mounting brackets on the sides of the HD which means it was plugged in but "Flopping" around in the compartment. So I figure that it's just beat itself to death and I need a new HD....made sense to me. Up until about 2 weeks ago the error messages would say operating system not found. I would power it down and then back up and usually by the 3rd or 4th try it would finally remenber that yes, it did in fact have an operating system and would boot up accordingly. I ordered a replacement Hitachi 80GB HD (Exact Factory OEM) I plugged it in and mounted it correctly this time with brackets. I power it up and it says "Hard Drive Not Found" Can somebody please help me? I did nothing to the hd before installing it, I don't have my XP restore disk but I do have a restore disk from a Gateway laptop that has Win. XP on it and my product key on the bottom of my Vaio. Any help would be greatly appreciated. Thank You, John