My toolbar icons are oval for some reason. I know they should be circles. They are working fine, just looking a bit odd. This is a minor cosmetic problem that won't affect the game play much - nevertheless, I'd like to fix it. Please let me know if you have any ideas about the matter.
I have a widescreen. The graphics are otherwise fine - hexagons are hexagons, squares are squares, people don't have flat heads etc. The toolbar icons were fine in the beginnig but then I tried switching between different toolbar modes to see which one I liked. As a result the icons became ovals.

I do have Linux but I don't know if the problem has anything to do with it. Perhaps this should be in the Newbie Help, sorry if I chose a wrong place to ask...