Dave,
in the meantime I suggest you to download the latest revision, that is Rev. 57, whose link can be found here http://www.interazioni-educative.it/Downloads/index.php .
Your problem should persist also with such revision of course; it might be that you need some MS update.
First of all: do you have Win7 Service Pack 1 installed?
Moreover you need .Net 4.7.2 and DirectX 9.
You can look here for clarifications about .Net 4.7.2
Once that .Net 4.7.2 has been downloaded and installed, there should be a message at OR startup in case you need also to download DirectX 9.
in the meantime I suggest you to download the latest revision, that is Rev. 57, whose link can be found here http://www.interazioni-educative.it/Downloads/index.php .
Your problem should persist also with such revision of course; it might be that you need some MS update.
First of all: do you have Win7 Service Pack 1 installed?
Moreover you need .Net 4.7.2 and DirectX 9.
You can look here for clarifications about .Net 4.7.2
Once that .Net 4.7.2 has been downloaded and installed, there should be a message at OR startup in case you need also to download DirectX 9.




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