I frequently get a pop-up, Your computer is not protected. Security Center says several real-time scanning functions are disabled. I can click Fix and it fixes it for a while, but then the message recurs.
But this occurs ONLY when I am running the P2P application Shareaza at the same time. The people on the Shareaza forum thought it was a problem of memory shortage causing the Mcafee real time processes to crash. I have 768 Meg of RAM.
Since the problem NEVER occurs when Shareaza is not running, I don't think it's any kind of infection. I rather think it's a problem with Virusscan. I'd appreciate a fix. I'm glad to cooperate in running diagnostic programs, traces, etc. to help diagnose the problem.