It is the most strangest variant if it is a virus. its a long story,pls read it i REALLY need help,i don't even know wether i'll be able to post it or not. well about 3 days ago i tried to extract a program from my cd i burnt a few days ago,this cd had no problems before,but at that time i got "archive corrupted" msg,i was puzzled but i tried another one,same msg,suddenly my whole cd was corrupted. i then checked other cd's and found out i could'nt extract/install any program,so my cd's were right,something wrong with computer. my first thought...virus. now i have never been hit by any big virus,i always thought i had veru tight security settings. kaspersky avp avast avg pc-cillin f-prot for dos tds-3 ad aware spybot spyware blaster zonealarm but none of my antivirus/trojans found anything unusual. after hours of scanning and no benefit,i suddenly saw an old copy of mcafee for dos,which was about 6 or 7 months old. i booted my pc from this bootable cd and scanned,surprisingly this old dos antivirus found two unknown "Win32 new variant" in 2 of the kazaa files(damn kazaa) i deleted these right away,i thought later that i should have kept them so i could send them for testing.but i was confused. well every thing went fine for about 2 hours then again same thing started. to cut this part short,i formatted my hard drive. after that it went fine for 1 day,but today all the hell broke loose,i am getting errors,explorer has done an illegal operation,opera has done an illegal operation,this has done and that has done an illegal operation,blue screen of death,and a strange msg on a black screen sometimes when i restatrt my computer windows protection error you need to restart your computer press any key to contineou or windows protection error you need to restart your computer due to stack overflow this section is halted press any key to contineou although nothing happens if i press any key so i am lost. i did an online scan by mcafee,nothing found.i have searched registry for suspicious entries,checked every possible autostart entry,there is nothing. i am seriously thinking that either 1. a root kit has been installed on my system,thats why no anti virus is detecting it.i don't know much about root kits,but i know a little bit about there functionality thats why i am saying this.whatever is this it invisible. 2.its not a virus,its something else,some other problem,but i had formatted,then why now can a root kit survive a format i have win98,1.2ghz processor,192 mb RAM PLS HELP ME.