As far as your resolution, yes the 900 is the problem. I tested with many settings and a minimum of 960 is required to see the full screen. Based on your screenshot you can see everything the full list of users to deny access. The permissions aspect of these modules was just added in the latest update. You are the first user to report this issue. I believe Jaxel will probably take not and make a correction for future updates. Of course you should not have to adjust your screen, but if you wish to adjust those settings today, that is a way you can do it.
Both iTuN3r and I also have this problem (listed a couple of pages back) so I think Jaxel may be working on a fix for this