https://bugs.winehq.org/show_bug.cgi?id=26617
--- Comment #14 from Yuri Shishenko yurishish@gmail.com --- (In reply to games4tux from comment #11)
I have two tips about this issue, it might help to find the solution. The first tip works only with the game in full screen. With antialias off. During the race, when the black squares appear, if the user press alt-tab to change window and press alt-tab again to get back in the game, the black squares disappear. The second tip, in case the game NFS Shift2Unleashed, is to activate the antialias, choose normal mode, and the black squares no longer appear. But the game gets heavy with low FPS. You need a good video card.
Why the black squares disappear when switching between active Windows? Resolving this issue, might solve the problem.
I hope I helped.
Just tried to play this game with Nvidia GTX660 and proprietary driver v352.09. I tied both anti aliasing enabled modes but black squares still appears. After pressing alt-tab and switching back to the game, squares disappears but only for a moment, then squares appears on the same place. If wine virtual desktop is enabled, alt-tab does not helps.