Hi People, Was having some problems with internet access, contacted customer service at my provider. Turns out I was infected with the W32/Blaster worm. As infections go, it is relatively benign, but I was dismayed that NOD32 did not detect this worm. mblast.exe was one of my processes running when I pressed ctrl-alt-del and the mblast file was in \system32, so it was very easy for ME to see that the worm was active. Yet when I run nod32 scan it did not detect it. I am running with a virus definition update from earlier this week. Any suggestions? When I do a scan, I have ALWAYS received a couple error messages about MBR records, but from reading the forum I think I see how to avoid these in the future, but otherwise scans seem to be normal and don't find anything. Thanks for any help.