In TextPad 5.0.2 running on Windows XP SP2, if I have document tabs disabled, whenever I switch documents via the document selector, the document appears briefly in windowed form (i.e., as if cascaded). It's really distracting. This doesn't happen if I switch documents via Ctrl+Tab or if I enable document tabs. This didn' happen in 4.7.x.
Okay, I tried TextPad 5.0.3, and while it seems that the problem is fixed when switching between documents in the document selector, it now seems that the problem occurs when pressing Ctrl+Tab repeatedly.
This still isn't fixed in TextPad 5.2 either. Note that I don't see it when cycling between two open text files with Ctrl+Tab, but I do see it when cycling between three or more.