I'm not really too sure how you can't repeat it... it does take a few windows to cause it though. The bug isn't context-based so the Vista version is irrelevent. It's logic based. What you are asking it to do it put the window to the "back" of the stack of windows, then animate it away. This only works with maximised ...

Hello :) I think I've noticed a bug in Aero... Let's see if I can explain steps to reproduce:Open up a few (like 3 or more at least) windows to get a few entries into the task bar.With one of the windows maximized, try restoring/minimizing another by clicking repeatedly on its task bar button.Often here, I see the Aero "zoom" ...