Here is a software that is not displaying properly which you can read yourself.
I wonder if I can fix the problem myself? Anyone? thanks.
---
PDS works properly in those Windows operating systems which use the TrueType font specification (3.1, 95, 98, ME). Unfortunately, it is virtually unusable in the newer operating systems, Windows XP and Windows 2000, which use the new OpenType font specification. In these two cases, a font problem causes notes and staffs to be displayed as blocks.
http://pianoeducation.org/pnopdsfr.html