How can I detect the problem with my antivirus system?

I have Norton Antivirus installed on my pc, and it expires on 9/16/06. Today it said in the control panel that I had no virus protection and I do scan daily.I want to change to a different antivirus program. Any recommendations?

How can I detect the problem with my antivirus system?virus

Nod32 very good.

When you uninstal norton use the removal tool.

Hope this helps.

Good Luck.

How can I detect the problem with my antivirus system?anti virus

I use AVG as well. It's free %26 does a good job.
Try AVG. It's free and it consumes less resources then Norton... You could also try KAV,NOD32...
mcafee or panda!!