Hello, guys. I installed avast! on my Lion-based Mac not long ago and it 's been taking too long to shut down since. Whenever I shut down my computer or restart it, it shows up a white screen with a spinning pinwheel, similar to that you get when your Mac is starting, for twenty seconds or so. I wasn't sure at first whether this was down to avast! but then I uninstalled it and my Mac was back to normal. I would really appreciate it if you fixed this bug because I've been using avast! on my windows-based laptop for a while and would like to continue to do so on my Mac, too. Thank you in advance!