There's certainly a consensus that McAfee is the worst. The field is split on Norton products because many folks don't realize how good they've been in recent years (but yes, they did go through a rough patch). I use Kaspersky products - they aren't cheap, but you won't hear anything bad about them from knowledgeable folks.
Again, please describe the EXACT problems you are having with the other programs - just saying they don't work doesn't give us much to go on.. Also, What is new or different since the last time everything worked properly (ie, new hw, new sw, virus, error, etc)?
Edited by Allan, 10 July 2011 - 01:04 PM.