I have been using NOD32 for a while now, with no problems. Today I brought it up to run a scan and noticed that IMON was disabled. I tried to enable it, but was unable to. Also, when I ran the scan I got this message saying that NOD32 could not scan the Master Boot Record portion of the physical disk: "Error occured while scanning MBR sector of the physical disk. Error reading sector." I booted to my XP cd and used the "fixmbr" command, and it removed the error message from the next scan. However, the MBR error message has since returned. IMON is what worries me most, though. Anybody have any idea how I can re-enable IMON and if the MBR error message is significant?