http://bugs.winehq.org/show_bug.cgi?id=22778
--- Comment #9 from Mark K markk@clara.co.uk 2012-02-03 06:38:55 CST --- It looks like this bug has reappeared.
I'm testing WinUAE, an Amiga emulator. With Wine 1.3.36 the bug was fixed, and the emulation window refreshes when it is partly off-screen. With Wine 1.4rc1 the window stops being refreshed when partly off-screen.
I'll try doing a regression test shortly.