http://bugs.winehq.org/show_bug.cgi?id=4070
------- Additional Comments From stefandoesinger@gmx.at 2006-24-07 09:07 ------- This is a case of multithreaded direct3d, which is unsupported by wine. You can try the hack at http://stud4.tuwien.ac.at/~e0526822/thread , it fixes the issue for Empire Earth but it lowers the performance by 90% and apparently breaks lighting.