lol, the website I was on was plain text. That was one of the first things I thought of. I went to various different sites and it continued.
The start menu graphics popping in and out occurs randomly, not because I need to reinstall anything. Other folk have posted bug reports on it. No pattern to it I see. After a reboot, some or all may be there or may be blank, next reboot, different group. I suspect their mods introduced another bug. I'm not alone with these issues and I suspect they'll get fixed pretty quickly.
What's sad is I've been pretty great with NOT having as many bugs as others here until I hit this build.