For some reason, I have all the setup files (part 1,2,3,4, etc, etc, all 16 GB) for X2, except SONAR_X2_Producer_Setup1.exe
I have no idea why I didn't save the master install, but there you go.
How do I go about re-obtaining? I need to re-install.

there is no SONAR_X2_Producer_Setup1.exe
you start the install with 02_SONAR_X2_Producer.part1.exe
 
 
Edit: corrected reply.

I don't even see that as an option

read the install instruction, the file list is linked at the bottom
http://www.cakewalk.com/s...tion_instructions.aspx

Just double click the first of the self extracting archives and it will take of it all for you.

BTW, if you downloaded with IE, it may not have added the extensions to the files. IIRC, that was a problem some were having installing X2. It has been a while since the mass X2 upgrade party.

Okay. I tried that multiple times. It extracted all 4 parts, then disappeared. Nothing. Zip. Nada. 
 
Never mind. I just ran the 1.exe as admin. It is behaving differently, so I imagine that was the prob.
 
I do love the fact that as non-admin, it runs thru all 4 unpacks, and then decides to go gently in to that good night :)

Yep gotta be admin. It writes to places normal users cannot access.
Also don't forget to run Rapture and DimPro as admin to register.