http://bugs.winehq.org/show_bug.cgi?id=12573
--- Comment #3 from Marc Payne marc321@gmail.com 2008-04-14 01:28:43 --- Please note that installing the tahoma font with winetricks seems to eliminate most of the box symbols, except for the five next to "-- OR --" under "Open a MIDI or Notation File on My Computer".
However, I do not believe this invalidates the bug, since Wine 0.9.47 and earlier render the initial screen without problems.