What the what?

So I created a user, YAY! and logged in and the initial screens looked great . . . then, well, look at the picture. Obviously, some CSS is not playing ball. But what do I do? When I try to run repair from ADMIN I get a time out. I want to put SUITCRM into a time-out. Somebody splain.

This has been coming up in quite a few threads in the past two weeks.

Seee this one, for example, it contains many detailed instructions
https://suitecrm.com/forum/suite-themes/9739-problems-with-the-theme