The first time my wife ran Ad-aware on the office computer, it had 160+ assorted problems... and was running like it was dipped in molasses.
LOL! I remember the first time I ran a virus checker on my brother's computer. He had over SIX HUNDRED (no I am not kidding.. they kept reinstalling themselves and lots of altered names by one letter, etc) of them, but the problem he was complaining about was how incredibly slow it was running.