hi all 
i have(not only me) problem with ati card aka “Checkerboard of Doom” 
it is known bug afaiu(i’m not very good in english)
exactly like this
http://ati.cchtml.com/attachment.cgi?id=609
ati said that this is wine bug
http://ati.cchtml.com/show_bug.cgi?id=1173
so afaik problem is not fixing…
i have working propriatary driver for ati radeon xpress 1100 in my laptop.
:~> glxinfo
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_texture_from_pixmap,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method,
GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_visual_select_group
client glx vendor string: SGI
client glx version string: 1.4
<skipped>
:~> fglrxinfo
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Radeon Xpress Series
OpenGL version string: 2.1.7873 Release
:~> wine --version
wine-1.1.3
:~> uname -a
Linux <mylaptopname> 2.6.25.11-0.1-pae #1 SMP 2008-07-13 20:48:28 +0200
i686 i686 i386 GNU/Linux
maybe some one know how to fix problem with “Checkerboard of Doom”