I recently upgraded to Max 6.1.9 but am now having problems launching it on Windows 7 (64-bit). I'm getting a pop-up error:

"This software could not find the required user interface DLL."

The 6.1.9 runtime launches fine.

I've tried reinstalling this version and also running it as an administrator but neither has worked.

Does anyone know what the issue might be? I'm going to see if I can get the 32-bit version working.

Robert Baldock