Not sure but try leaving nexus to "R" see if that works. Program may be pre-programmed to have it default to "r".
Full Screen zooms in as it scales to the size of your monitor and adjusts accordingly. To change you have to customize your client. (Basically re-work/code or whatever it to zoom out more based on the client itself, KrankShanks helped someone do this for his Boxer, he is only one currently who has done this).
Also, If you are blacking out the character names I assume you are boxing on named accounts. Recommend do not and make new unnamed accounts to box with. Hard to get banned. (Also only transfer items to your named accounts/main. DO NOT USE TO BOX).
Have Fun