When I log on to Nexus, all the text appears tiny and I can't change the font. Is there any way to fix this?

To the left of the client, there are two blue buttons which has gears and a key on them. Click the one with the gears and it will bring up a window which enables you to change the font.

Aye, in the top right hand corner you'll see a little blue box that lets you open Nexus in a different window. do so, and then simply make said window full-screen

Sometimes with Nexus if you detach the window before you finish logging in it makes the text tiny. Just reattach it and detach to fix.

Ok thanks, it worked.