Texture compression artifacts

Hi
I'm having problems with my widget textures when texture compression is enabled in the video card driver settings (Intel cards only though).
I get artifacts looking like this (200%):



Is there a way to prevent this?

Hm, is it default skin without changes?

I haven't changed the default skin. All I am using is the default skins and widgets and StaticImage widgets with my own textures (those have artifacts too)