That problem you have in the first screen, is a by-the-book example of video card setting problem.
Specifically, the anisotropic filtering is not working well. Try to check your video card control panel, and play with the various options related to anisotropic filtering.
Also, have you installed the textures resizer for Geneva ? If you haven't, using it might be able to improve your situation, in case your PC can't cope with the amount of data for the full resolution.