I am tried to do a refresh install on a new system of my Sonar X3 Producer. I have downloaded all 4 parts needed. I select part #1 and begin the install. The file unpacks and starts, minutes go by and an error message comes up, "file corrupt". I tried downloading the part #1 again with the same outcome. Can anyone help?

I would try to download part 2-4 again. From your description it seems as if part #1 is OK as the installer doesn’t complain immediately, but when trying to continue with one of the following parts something unexpected happens.

I will try that.