Hey, I'm having some trouble getting any game to install properly with playonlinux. I've tried Neverwinter Online, Skyrim, and Hearthstone. I think my issue is coming from the virtual drive installation because a window tries to come up, but it only shows like the bottom corner of the window. Aso with Skyrim, everything seemed to work okay, but when it asked me what language I wanted to install, the window containing the language selections won't show up. I don't know the information y'all need in order to try to help, but I can tell you I'm using Arch. Sorry for not being able to offer more information up front, I'm just still really new to this. I just started using linux a few months ago.
Sounds like you are on a laptop and your Linux Distro is using Font Scaling. PlayOnLinux doesn't support Font Scaling so you might get missing text or wrong-sized text. Try setting your screen resolution to something smaller like 1920x1080 or 1680x1050
Not sure why Skyrim installer doesn't allow you to select a different language. If your Steam client uses your language, Skyrim should too.