Hi Peter
Most probably you dont have the .Net Framework installed.
Please read here how to get it:
http://www.jososoft.dk/yamaha/software/tech_dotnet.htm If this not solves the problem please mail me again.
Regards
Jørgen
------------------
The Unofficial YAMAHA PSR Resource Site at [URL=http://www.jososoft.dk/yamaha [/URL]