KAG Graphical errors

This is an example (Fellere's name), this sort of thing happens to me constantly, if not that graphic, blank white area, or some other random PNGs. I'm not sure what's causing this, I've reinstalled KAG several times, in different directories and through steam as well not. I've now just attempted forceupdate.png as well and see no change.

Windows 7 x64, no recent changes made to the PC that install anything different, as I've had this issue for quite some time, but now it's solid blocks instead of semitransparent.

 

Try updating your GPU drivers.

 

Have done this, as well as removing my onboard graphics drivers as it was causing conflicts previously with fullscreen openGL. I've tried everything several (about 10) versions of the driver from December til now, it's caused this issue on all of them, as well as on the Intel onboard graphics drivers.