Just typing from IE7...
Something is seriously wrong with this new version of avast!. It happened for the second time (first one was right after the update to beta version, otherwise it never happened anything like this with last official version of avast!) that Firefox locked up completelly.
Firefox process is running but i can't terminate it or do anything with it. And before this happened, avast! decided to report to Security Center that it's disabled (even though it was in fact running) right after i finished installing new drivers for my X-Fi Xtreme Music soundcard. Then i stopped it and enabled it back (so Security Center is reporting it correctly again). And then the above problem started.
EDIT:
There. It took 5 minutes for something (i assume it's avast!) to release Firefox from it's claws and now it's working like nothing happened.
EDIT2:
Rebooted the system because of X-Fi drivers that i just installed and after 5 minutes after boot, avast! again reporting that it's disabled even though it's not (in Vista Security Center).
EDIT3:
Just been playing with my westie and when i came back Security Center warning was there again