I seem to be having a lot of slowdowns all of a sudden on my XP SP3 machine -- hard drive grinding, and general sluggishness with Explorer (not IE). I've put up with it for a few days and initially put it down to Opera, but it's so unusual I had to try disabling avast! first since I see its tray icon spinning around a lot.
Disabling all shields temporarily, my computer is once again quiet, spry and responsive (but unprotected). I've used avast! since version 4 and never had this problem before. Has something changed significantly (like an additional scanning process) in the most recent version I have updated to, 6.0.1203?
Cheers.