2 Norton AntiVirus was unable to scan your Instant Messenger download for infections because some Norton AntiVirus components are missing.
3 Norton AntiVirus was unable to scan your Instant Messenger download for infections because your computer is running out of memory.
4 Norton AntiVirus was unable to scan your Instant Messenger download for infections because a critical error occured during the scan.
5 Norton AntiVirus was unable to scan your Instant Messenger download for infections because virus definitions could not be loaded. Start LiveUpdate to get the latest virus definitions and scan again.