How do I adjust the resolution of the client in Ketchup V15?

Hi, I'm new to this and I've just built my first private server. I'm using Ketchup's V15 files and I'm having trouble adjusting the resolution of the client.

I've edited the neuz.ini file, I can set fullscreen from 0 to 1, that works, but the resolution doesn't appear to effect the client. Am I doing something wrong, is there another step involved, or is this just a limitation of the client?

Thanks.

Close the client entirely, edit Neuz.ini to something like 1440 900 save the file then launch the neuz.