Hi, i just wanted to start the subject about Norton after experiencing some errors on my computer...

The problem: I am currently using Windows 2000 pro, and when ever i connect to the internet the same annoying thing happens, Win2000 pops up with its system error....saying that a file or something was terminated and save your files or it'll be lost...blah blah and windows will shut down and restart in 60secs. The file that was terminated was called isass.exe, and it was always happening once i got connected to the net, and it was seriously getting really annoying. so i look the file up and it turns out its a virus...(do not be mistaken, the file is called isass, not lsass) that confused me at first because the lowercase L looks like an uppercase i, so i look it up and lsass is a native windows file, but isass.exe is not.
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info on isass.ex:
Process File: isass or isass.exe
Process Name: isass
Description: Virus added to the system as a result of variant of the OPTIX PRO TROJAN that opens TCP port 3410 and allows a hacker to control an infected computer.
Company: N/A
System Process: No
Security Risk ( Virus/Trojan/Worm/Adware/Spyware ): Yes
Common Errors: N/A
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BUT, after finding out that isass was a trojan, I check live update for Notron Anti-virus to check if my program was up to date on the latest viruses, and it was....the note came up saying that all my virus definitions were up to date ( 2004/7/15 ), which was just yesterday. so i unplug my internet connection and start a full system scan on my computer....The scan results came up as 31143 files scanned....and NONE INFECTED......this was the part that i got frustrated.....because i paid for the program...the subscription......and the results I get back.....well I dont like it....so yea I mean if anyone who has an idea on why Norton didnt pick it up....or if you dont think that people can rely on Norton than please post here...I personally dont know if it was Nortons fault on not picking it up...or some other reasons....