Nr.1 this topic is from 2004 Nr.2 if you are running NOD32 and Avast at the same time, then yes you have messed up things
Multiple Antivirus Apps on One PC? http://tech.yahoo.com/blog/null/39904
Clash Of The Antivirus Apps http://www.smartcomputing.com/editorial/article.asp?article=articles/2003/s1407/38s07/38s07.asp
quietman7 reply http://www.bleepingcomputer.com/forums/index.php?s=11349ece5351ddb33ec62dc1f39aa3fa&showtopic=260844&view=findpost&p=1441638