http://bugs.winehq.org/show_bug.cgi?id=9812
--- Comment #15 from Dmitry Timoshkov dmitry@codeweavers.com 2008-05-16 08:42:54 --- (In reply to comment #14)
(In reply to comment #13)
What's you locale? If it's not Czech that's the problem.
My locale is usually en_US.UTF-8, but I tried also to run 'LC_ALL="cs_CZ" wine command' and it gives the same result.
Do you have a working cs_CZ locale? I'd expect it to be at least cs_CZ.UTF-8.