Resolution errors

I recently purchased a new laptop that has a 4k resolution, 3840 x 2160 to be exact. When I try to run fgunz all the text is blown up. I cant really see server names, chat msgs, settings for the most part. But I'm able to login via memory. I'm able to change the resolution, in game, once before the resolution sizes are no longer readable. With each resolution change the resolution sizes become more illegible. What resolutions would you guys recommend?

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I forgot to add that the launcher is itty bitty also, but it doesn't really matter much