aye, using 1.8k

I forgot to mention, I run Vista Home Premium, fully windows-updated.

But yes, you described the scenario in much fewer words than I did

My current workaround, is after switching, I click with the mouse to focus the "runaway" slave, and click back in the main window. Considering lowering maxfps to a point where it doesn't affect my gameplay, if 2 windows run like that. Also, after visiting IronForge in primetime, I should lower the maxfpsbk a bit... damn, there's a lot of stuff going on there.