My 7573 began beeping 3 times at startup, then running normally. It only beeps upon startup and shutdown sometimes. Called Dell and they suggested replacing the motherboard. I asked if there was a way to tell how much longer the computer would function normally, they said could be days or years. Replacing the motherboard is not cheap and I will be without my computer for a few weeks. Anyone have experience with this? My laptop works fine, the beeps are the only indicator their is a problem. I hate to spend so much money to fix a functioning computer that is only 4 years old. Any advice or experience with this type of problem would be greatly appreciated.