1. About the issue
I’m guessing you’ve already configured the Keyboard Layout for Romanian.
After installing Microsoft Office 2010 with PlayOnLinux v4.2.7 I’ve had issues with displaying Romanian fonts from documents written on other Windows 7 PC’s.
I was getting squares instead of the proper Romanian letters, specifically the problem was with the letters U+021B, U+021A, U+0218, U+0219 (lowercase & upercase T & S “with comma below”) from the standard character encoding.