Error button/ in menu

[Saklor]

I have a problem with steam version of Men Of War. I have played it before without problems, but today, I launched it after 20 days without playing. Everything looked fine, but when I came to the menu, all the buttons said "button/singleplayer" "button/multiplayer" and so. This makes me unable to reach certain options from the option menu. One of my steam friends had this problem too, and we are both from Argentina. Any idea?

Thanks!

Edit: When I entered multiplayer mode the game asked for my serial number again.


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