Window switching sporadically working

[Blubber]

With the help of Alge on #isboxer I figured out that, somehow, too many sessions are being started. When I type 'sessions' in the IS console, it tells me 10 are running, instead of 5. One of the ten is is50 (which according to Lax) is a launcher.

The weird thing is that I'm launching wow.exe directly, and that bg downloading is turned off. Also, my wow is up to date.

Edit: Pretty sure it's the battle.net update agent that is causing the problem.