Back to original topic, which began:
When I do an alt-tab in Windows 7, if I don't constantly switch window (holding down alt and quickly clicking tab) it will go into Peek mode. Normally, I would expect the alt-tab window to stay on top when the Peek happens,
but, instead my little alt-tab window disappears behind the windows being brought forward by the Peek. ....
Today I proved to myself that Corel PaintShop Pro X4 provokes this mis-behavior on my Win7 HP 64bit desktop. Without PSP running I get the correct & helpful behavior, showing thumbnails of all open apps along with their icon. When PSP is running, alt+tab shows
those thumbnails only for less than a second.
This is probably Corel's issue / oversight & I try getting a response from them.