When I am working in Poser, after a few minutes when I move the camera and release the button, the screen flashes and if I have any other windows open, they move to the top. Can be any window, Firefox, an explorer window, etc. Anyone else have this happen? Never happened with Poser 7.

That is the OS not maintaining Focus of main app. I can have that happen with any program when using Snipping Tool on Vista. Never had it happen when using Poser Pro, unless I was in the process of using the Snipping Tool and then it would also happen to IE, Photoshop, etc....(doing a new Snip after the initial Snip, The Focus of the Screen would change to one of the other programs, instead of the last one used before clicking New Snip)

Yea, That is one of Windows 7's new Annoyances!

Drag any window to the top of the screen, and it "pops" to full screen (also an inadvertent "double click" at the top of the window, like when you really just wanted to move the window).

In other words, nothin I can do about it... sigh

It is a windows feature, not a poser problem.  Yes there is something you can do about it.

You can disable the Aero "Snap and shake"

Open Control Panel>Ease of Access Center>Make the Mouse easier to use.

Near the bottom of the window, Check the box next to "prevent windows from being automatically arranged when moved to the edge of the screen".  Then click "apply", and "OK"

See the screen shot.

awesome! Thanks! I'll give that a try.