I just downloaded Dell Support Center 2.0, and the very first "Alert" that I got was a Critical Alert saying that a BIOS Update is available. It gives absolutely no information about why this is considered Critical. It just says the update will help reduce the possibility of problems, lockups and crashes. I have a Dimension 4700 system, and I'm not having any BIOS related problems, lockups or crashes that I'm aware of. My question is, should I ignore this "Critical Alert", or should I go ahead and update my BIOS? Thanks.