http://bugs.winehq.org/show_bug.cgi?id=6351
--- Comment #91 from detructor15 steffen.linux@gmx.de 2012-03-11 07:20:51 CDT --- (In reply to comment #90)
The flickering black hexagons in the ground are a game bug. They occur on my brother's Windows 7 machine with a AMD Radeon HD 4670 too.
in that case, I'd say it could also be a AMD driver bug. (they seem to have problems with transparent things...look at current GnomeShell /w AMD's fglrx driver)