Hi,
I'm pleased to find this thread but not been able to solve my own problem unfortunately. I have just had my laptop upgraded to Windows 7 but have failed to get your copy of 4.3 to work; it comes up with the error message: "Installation process for Sonic Stage has been terminated. (2051.20698)"
I have tried clearing out all previous versions, used regedit to delete anything I could find to do with SS and Open MG but no luck. I would be grateful for any help as I need SS for my work having recording music performances and can't really afford to buy some more hardware to replace my MZ-NH700 and microphone. Thanks.