After downloading Avast from CNet I lost all control of the computer (three days old). Had to do an emergency shut down
as nothing else worked. After two calls to Apple Care without being able to reboot I had to take it in to the nearest
Apple Store! The only thing they could do was a clean install. Since it wasn’t but three days old I didn’t lose much!
Apple informed me the new Macs have Gatekeeper and File Quarantine and Avast was just not playing nice.
BEWARE!! Danger Will Robinson!!
thanks for the report CD, and sorry about your misadventure
should have been posted in avast for Mac forum section. http://forum.avast.com/index.php?board=5.0