Biraffe

Ok. I too have had major issues with my HP with Vista Home Premium. At first, I was having the problem of the computer doing a hard-shut off by itself. After many hours on the phone to HP, they decided it needed some work. I mailed it in, and within a week I received it back with a new motherboard. Everything was fine for 3 days. I then started receiving the "USB Device Not Recognized" error message. My only USB device was my HP printer. So, after many more hours on the phone to HP, it was determined my printer was the culprit. I was sent a replacement printer the next day. However, that too triggered a "USB Device Not Recognized" message. Figuring that the problem might be with the HP printers, I went and bought a different brand of printer. This too brought the same messenger of nonrecognition. After approx. 20 hours on the phone with HP about this, I am giving up. They keep telling me they'll call me back, and they never do. Please help me! If you have any advice, I'm willing to listen. P.S. I have also disabled the Legacy USB, and done several sysytem recoveries. Thank you.