If anyone wants a nightmare update... just use AVG (either the antivirus and the antispyware).
I need to work one afternoon in a friend's computer... It just can't update at all... it's silly.
By the way, what a good detection rate has Kaspersky even in the on-line scanning.
An infected computer that passes through a-squared, Spybot, AVGas, AVG antivirus... it was detected by Kaspersky.
I wish I could have that scanning engine. AVK has two engines, one is Kaspersky, it would be nice if there is a freeware version