Textures disappearing

Alsmost every time i go in to play a battle in the campaign textires are not there and units look like they are covered in glue.i alt tab and then they are all having uniforms but not goddamn colours
What the hell is wrong with it?And its not my graphics card.i can play the game without lag at all

Do you have any mods installed?

Have you tried lowering your monitor resolution to 1024 x 768, no eyecandy, and Shader 2?

well when i restart the game everything works fine.keep in mind that most of the times i alt tab to check some stuff and get back in after that.does this have any effect?

It can. I do it rarely as it does take gpu resources and Windows enviroment still is not a good multitasking program. Some seem to get by with it but their rigs are far better than mine. If you alt-tab out and when you tab back inand the graphics have changed, you just ran out of graphics memory.

I get it occasionally, it seems pretty random, which mean's its probably CA's fault, and not Nvidia's... I call it the 'Bronze Soldier' bug, as in my cases everything on the soldier/horse/cannon is a chocolate-bronze color. On lower LoDs the invisible part of the sprites turn black as well.