ProgDVB hangs on Loading

#1
I have used the program now for some years without a problem. I'm running Windows 7 and recently upgraded to the professional version from the Home version and since then I can't get any version 5.xx/6.xx to run. I start it and the small Loading window pops up and a larger window saying my key has expired with buttons for "Enter key" and "OK", click either one and that window disappears leaving the small Loading window and that's all I get. It will stay there all day if I let it, in Processes ProgDvbNet.exe is running and the only way to close the Loading window is to close that process.

Since the old earlier version 4.9xx works ok I thought maybe it has something to do with .NET so made sure it is up to date but still no joy.

Anyone got any ideas what the problem might be?

/edit Card is a Hauppauge HVR-4000