[Solved] White map - I only see the ground if I press F1 or F2

[meme_1]

Hello!

I've read and searched to solve this, but I've found nothing: If I play I can only see perfect white underground. Only if I press F1, F2 or build an extractor there are visible textures of the underground displayed.
I have an ATI X1300 card and a windows 7 platform. I've already read that this card should work. I've also tried to install a "better" driver via the Mobility Modder, but this may have failed - modding the new ATI desktop driver release was somehow very fast, too fast.. - Also tried several settings but no success. Only with F1 or F2 I can see the world.
Does someone know how to fix this? I couldn't find anything. Thanks!

C.

[Beherith]

Set advmapshading to 0.

[meme_1]

YES! This has solved it.
Thank you!
C.