wine users - Jul 2010 - minimap and Leaderheads not showing up in Civilization IV

Civilization IV Beyond the Sword expansion.

I'm using Wine 1.1.44 with the latest intel drivers (2.12.0) and mesa at
7.8.2. OS is GNU/Linux, Gentoo distribution

Both the minimap at the lower left corner and leaderheads don't show up,
showing just a black section on the screen instead. Also, some artifacts are
showing up in forests and jungles.

This is very different from the results described on
http://appdb.winehq.org/objectManager.php?sClass=version&iId=10158&iTestingId=51250.

I followed these instructions thoroughly, tried different graphics settings in
both wine and game. alsto tried winetricks msxml3 msxml4 d3dx9, with the
required overrides, and no improvement was noticed. If you see te screenshots
from Appdb, we can see that minimaps are rendered correcly, and the wine version
is the same as of mine.

I'm using an intel GMA 4500HD and I have seen claims that it rendered Civ IV
under wine correctly. Also driver support for intel chipsets seems to be good on
linux, and it supports opengl 2.1 and dx10 natively, and has enough horsepower
for that game.

Am I missing a setting in xorg.conf? Is there a missing library on my system?

Thank you very much, posting screenshots as soon as I host them on the internet.
See you soon.

[Image: http://img256.imageshack.us/img256/4357/screenshot3uz.png ]

This picture shows the clear minimap at the lower left corner on the screen, as
well as the aforementioned forest and jugle artifacts (they kind of blink,
appear and disapper, just like the reflex of a starry sky on a lake.

Espected results, for both minimap and forests: similar to the ones displayed
here: http://appdb.winehq.org/screenshots.php?iAppId=2514&iVersionId=10158

[Image: http://img189.imageshack.us/img189/8373/screenshot2sx.png ]

As you can see from the second picture, not only the leaderhead is not showing,
but also the normal map in the back, that should be similar to the map in the
first picture.

Also, sorry for the triple-posting, but the minimap is that black square on the
lower RIGHT corner, not left. Silly me.