Thanks for the reports Melvin. We're fixing the project loading. I haven't been able to reproduce the stuck Enter button yet. The buttons on the right are used for debugging. I'll make sure we'll add some tooltips on them.
There are a couple places in the CSS where Tahoma or Trebuchet MS are given as the font families without any fallbacks - lots of us linux folks don't have fonts like Tahoma, so an Arial or Verdana fallback would be nice so we don't see our ugly default serif fonts.