Never thought I'd see the day where I'd post a general computing question here, but I'm desperate!

I have an XP Pro laptop with Norton 2003. I recently bought the entire Norton Anti-Security 2004 (firewall, new AV for 2004, etc.) It has totally blown my system configuration. I get the XP equivalent of illegal operations right and left. Excel, Word, and VFP all crap out, and I get bizarre virtual memory messages that I've never seen before in my life.

I've uninstalled and reinstalled several times. NAV 2004 will work for a little while, and then POOF! It disappears off the screen, and then it won't run in auto-protect mode anymore.

17 years of virtually zero-maintenance computing for me, and then the last 72 hours have been system-hell.

I've uninstalled Norton 2004, but Norton 2003 won't re-install.

Am I better off with McAfee?

Thanks,
Kevin