Just a little and strange bug: glBindFragDataLocation is null even with nVidia 190.56 drivers when glBindFragDataLocationEXT is defined.
__glewBindFragDataLocation = (PFNGLBINDFRAGDATALOCATIONPROC) wglGetProcAddress( "glBindFragDataLocation" );
if you add this to your code, it starts working. Somehow the variable isn't initialized.
Still an issue?
Closing this as "out of date" unless there more recent information about this still being an issue.
Closing, again. (Something went wrong with sourceforge migration, I think.)