we've had a look at the font issue with Linux and re-compiled Pango (font library) to work correctly on all Linux systems. We've tested this successfully on Fedora 16 x86, but would appreciate your help in testing on your own operating systems if you have had font problems with the game. The faster we get feedback on this, the faster we can push a fixed version. Thank you for your help!http://dl.dropbox.com/u/33370854/uoc/uoc_font_fix_2013_01_27.tgz
Included are some re-compiled versions of the Pango libraries shipped with Unity of Command, switching to these should hopefully solve this issue.
Copy these files over the original versions in 'Unity Of Command/bin'.
For the Steam beta installation, this will be:
'~/.steam/steam/SteamApps/common/Unity Of Command/bin'