Symptoms:

game runs fine in windowed mode. in fullscreen the main rendered graphics flash. background is rendered fine in full screen

LameBOX ~ # uname -a
Linux LameBOX 2.6.35-gentoo-r4 #1 SMP PREEMPT Fri Aug 27 14:21:18 EDT 2010 i686 Intel(R) Pentium(R) 4 CPU 2.80GHz GenuineIntel GNU/Linux

.config:

http://paste.pocoo.org/show/255500/

xorg.conf:

http://paste.pocoo.org/show/255498/

xorg.0.log

http://paste.pocoo.org/show/255499/

glxinfo:

http://paste.pocoo.org/show/255506/

Installed X11 stuffs:

http://paste.pocoo.org/show/255515/

Laptop info, where game runs fine (but slow):

LameLAP ~ # uname -a
Linux LameLAP 2.6.33-gentoo #9 SMP Mon Mar 15 17:36:57 EDT 2010 i686 Intel(R) Pentium(R) M processor 1.86GHz GenuineIntel GNU/Linux

.config:

http://paste.pocoo.org/show/255520/

xorg.conf:

http://paste.pocoo.org/show/255521/

Xorg.0.log:

http://paste.pocoo.org/show/255522/

glxinfo:

http://paste.pocoo.org/show/255523/

installed x11 stuffs:

http://paste.pocoo.org/show/255525/

i forgot to mention ... i pretty much systematically tried virtually every setting in the game with no change in issue.

9800XT (512MB) on LameBOX and X1300-mobile on LameLAP

What driver version for that 9800XT?
I can't find that anywhere.

That's probably because I generally scoff at ATi under Linux, but things might have happened in the time since I abandoned Linux for all gaming purposes...

Turn compiz off. 3D Window managers and 3D games never play nice.