Currently Being ModeratedJul 23, 2011 3:19 PM (in response to celtxian)
Check the thread below, there are other with slightly different symptoms that you might want to search for too. Good luck!
JohniMac 27, Mac OS X (10.7)
Currently Being ModeratedJul 23, 2011 5:37 PM (in response to jmilleruk)
Thanks for the tip. Read the suggestions. Avast wasn't the issue for me as problem remained after deleting it. I then renamed .plist file as suggested in one tip and rebooted. This solved issue for me.