http://bugs.winehq.org/show_bug.cgi?id=9008
--- Comment #26 from Oldrich Jedlicka oldium.pro@seznam.cz 2010-07-29 00:10:54 --- (In reply to comment #25)
Per bug 9190, Warhammer: Dark Omen is also likely affected by this bug, so you might be able to test this with the Dark Omen demo at http://download.cnet.com/Warhammer-Dark-Omen-demo/3000-7562_4-10016668.html
Good to know there is a demo for the game. I will try it today/tomorrow to see if it uses the back buffer in the same way (i.e. only blitting, no other playing with the swap chain).