I had an issue with a computer playing up - I thought the best thing was to reinstall Vista. Which I did - unfortuntley it didn't boot up. So I tried the install again - this time when I got to the vista screen it couldn't see any hard drives. I am thinking a new hard drive will cure the problem. The BIOS doesn't see the hard drive either, tried restting to optimal defaults - removing the battery. But it still doesn't see any hard drives - its an Acer x3810 - with an Hitchai hard drive -- Any ideas - could it be the hard drive ?