1	Norton AntiVirus
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.