instead of the graphic user interface. Loading layouts does work, however and playing the keyboard with the mouse does produce a sound. But it doesn´t seem to react to Midi.
Restart of the program doesn´t help, recently a reboot of the computer helped. But I don´t want to reboot all the time.
Does anybody have an idea what could cause this behaviour?
(I´m on GPO studio 1.2, WinXP home SP2, GPO player is, Midi comes from Sibelius.)

Thanks already in advance,
- Mathis