Norton AV and Firewakk turning off by itself

I've poste this in the Spyware Specific forum also, not knowing which would be the best.

I have Norton 2004 AV and Firewall. For some reason something keeps turning off my Auto Protect. Not when start up the computer, but just simply whenever, when i'm on the computer, jusout of nowhere. I have done all the Spyware checks etc. and my AV updates are current and It is set to scan once a week and it never finds any virusses etc. The only thing I do is Play on Pokerstars (ALOT) and occasionally I search on google, but I never go to any questionable sites like Porn etc. If I download anything it is from a reputable source like here or PC World.com or Yahoo or places that I know darn good and well that it has a good reputation. As far as my e-mails go...I stick with only the people I know and my SBC YAHOO internet account scans for viruses in my e-mails before it even gets into my Outlook Express, which also scans them.And mostof the stuff I get is from friends who also have yahoo mail,orcomcast or AOL,soI know there stuff is getting scanned also. Besides that I never open any questionable attatchments.

I am trying to avoid uninstalling and reinstalling my Norton stuff, because I have dialup and it would take me forever to get my updates back up to par!!!!

So i'm hoping someone has an idea what might be the problem? By the way i've had my Norton stuff on here for months and it's only recently started doing this. And I know how to do all the program settings, etc. It's just recently decided to start giving me trouble.

By the way...I am running Windows 2000 sp4, and there han's been any changes made since I set this computer up for my mother-in law months ago, and this problem arose about amonth ago.

Thank You
Roger