A path issue has been identified that will cause GMusicBrowser to not launch from tint2 or from the FluxBox menu. This was an issue with an xarchiver extraction and a tired dev
The fix is easy... the path now is
/home/youruser/gmusicbrowser/gmusicbrowser
You need to make it
/home/youruser/gmusicbrowser
and all will work fine... (making sure that you move/copy the contents of that directory to the correct place)
This has been corrected on the builds... I apologize for any inconveniences...