I've noticed that BD 2012 updates so many times in a short period.
I noticed this in another installation of Bd2012 and after an uninstall and reinstall i notice the same thing.
Since 8/13/11 @ 14:54:16 to 8/14/11 @ 16:32:53 there are 105 instances of updates and requests to reboot the computer ,, at this rate i would get nothing done on my computer as it would be rebooting all the time ,, not to mention i still can't use Firefox most of the time due to not loading sites since the update.