Hi.
I could access the preferences fine. In fact, that's about the only thing I could access as it is via the drop down menu above. Sadly though, albeit predictably, the graphics preferences in Viewer 3 (or any other preferences) do not allow or give any option for resizing of any kind.
This is a major floor. I could understand if I was running a custom built PC with unusual specs, but a 2011 MacBook Pro is about as generic as they come. To deny the ability for people to login using these (without some ridiculous running about fildding with settings) is just slopping development IMO.