Regarding this same issue, which I haven't really had time to work on until now. I am finding that the wall switching is related to the function you are talking about, but it will switch (sometimes, but too often to be funny) as soon as I hover off of the window dialogue, resetting all my options in the process. Has anyone else found that? I can then switch back to the wall pressing shift, but have to go through all my window options again. This might not be such a big concern if I could alter a window after the fact, but as we know, I cannot...