I am digging but I am not sure about this particular problem.
I tried running Notation Software in NT compatibility mode and discovered that it tries to create an obscure "Songs" folder in C:\Program Files (x86)\Notation\Composer
I have attached the message box Notation Composer throws in the early phase of opening files - before the file open dialog appears.
When I run Notation Composer "normally" under Vista I don't see this message.
Not sure if this is related to the stalling problem - I'll check that now... always booting to create the "first run after boot" condition is exhausting...
