I’m an experienced developer/technician but just now getting my absolute first experience with Postman. 
I loaded the WinX64 app over Win8.1 and rebooted. On start it takes a LONG time to open up. Then it shows the top menu and a black main area. I can choose menu options, and over a long period of time the main area changes to tan, black, or white. It’s apparently doing something but the UI does not display.
The app is being run as Administrator. I had no joy without that. It was installed as Administrator too, and my user has admin rights. I have a ton of other tools on this system like Eclipse, Netbeans, Visual Studio, NodeJS, and others. I’m guessing there is some dependency conflict.
The SquirrelSetup.log doesn’t go beyond "Program: About to launch … Postman.exe.
What can be done to diagnose and remedy this issue?
Thanks!