Mac AppStore badge does not reset after installing update I am experiencing a strange problem: after I installed a bunch of updates, the Mac AppStore badge was not reset. When I go to "Updates", I get the message "no updates available".
I tried to 


delete the AppStore cookie
rebuild the Spotlight index (found a recommendation to do so somewhere)
logged out and in the AppStore
delete some of the updated Apps and re-installed them


without any effect. Today, I got an update for another application; the update count was incremented and was not reset again.

Any ideas?
Rather than rebooting, you can just type killall Dock from your terminal application. It will reset the dock and clear the badges.