We have a computer that both kids use (as administrators) and I use (as an administrator) on occasion, mostly to run scans and updates and such. And we have a guest setting on it.

My son plays games and downloads stuff. My daughter plays games and downloads stuff. I run AdAware, Spybot Search&Destroy, and Spyware Blasted regularly. I use the Earthlink Firewall and Antivirus (comes free with membership--prior to a few months of this I used Symantec Personal Firewall and Norton Antivirus).

The computer is acting up in my son's and in the guest's domains. Once he has it up and running there is this steady repetition (several times a minute) of the computer's tone that indicates you've done something wrong. It might be the popup window or error sound. But there is nothing to give us a clue as to what program is upset.

I've just tweaked the firewall and removed a couple of blocked addresses that we don't know what they were. Maybe something important, maybe not. But this dinging is driving anyone near that computer nuts.

Has anyone else encountered this, and what did you do about it? It shows up as a blip in the task manager everytime it tries to check in, but I haven't figured out what it is.

SRS