https://bugs.winehq.org/show_bug.cgi?id=49724
--- Comment #10 from Louis Lenders xerox.xerox2000x@gmail.com --- (In reply to pixelChase from comment #7)
I saw in the log that GGnet.exe wants to access "C:\windows\fonts\tahoma<*...>".
So did you already try "winetricks tahoma" ?