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I just reinstalled my system and after WoT reinstallation I've run into a problem similar to post-7.2 issue with shaders (search did not yield anything useful). Right after launching game everything is ok but almost immediately "tank pieces" start to disappear. I've run into similar problems in other games caused by "Catalyst A.I." but disabling it doesn't help here, so it must be something else.
I always run the game as administrator and with disabled Aero.

My specs:
Inspiron 1564 notebook with:
Core i3 350M (2,27Ghz)
4GB ram
Ati Radeon 4330 using newest (for it) 12.4 Catalysts
Running Win7 64bit + SP1

Naturally the system is fully updated with fresh drivers and DirectX.

The problem did not happen on my previous install with 12.2 drivers. Full reformat changed so many things it might be irrelevant though.

Ideas anybody?
I'll try reverting to 12.2 later if nothing else helps... I used to get 20-50 FPS with this setup on med/low settings.


EDIT:
Judging by google search it seems that 12.4 drivers are poorly polished overall...
Edited by chiveicrook, 07 July 2012 - 02:02 PM.

Case solved:

Updating to 12.6 legacy beta drivers fixes the problem but performance is unacceptable - 15fps average. Also textures are darker. Even built-in windows drivers give more fps ;)

Reverting to 12.2 fixes all problems and performance is decent again.

WG should talk to AMD about their broken drivers...