Mouse wheel volume (almost fixed, doesn't activate with mixer open though)

I've updated to the v4.4.5.4 (beta), and though the mouse wheel volume on the task bar is generally fixed, it doesn't automatically activate the last used volume control on the Mixer as it used to when the Mixer isn't already brought to the front.
Result: If the Mixer is running but is not the active application, mouse wheel on task-bar has no result.
Also, this software is frickin awesome, can't live without it! =)