We have done a complete rework of the software that generates our homepage. You shouldn't see too many differences, except that the pages now will use a lot less bandwidth, and also that users who depend on screen readers can navigate it much more easily.
Should the layout look mangled or the colors off, try using your browser's Reload button. If that doesn't work, you will probably need to empty your browser cache. Instructions on how to do so can be found at wikiHiow
The forums are not affected by this change.