Not sure if this is a theme-specific error or just how 3.3 handles its main menu, but highlighted items on the main menu no longer highlight themselves correctly.
please see: http://www.tfindley.co.uk
As you can see the first two menu items are constantly highlighted when on the homepage. If you browse to a sub-page within that menu structure the highlighting no longer works. The single-level menu items work perfectly however
It is worth noting that the main menu headings are pseudo-items, and do not actually link to anything. I might try re-creating the main menu by hand to see if it fixes it.
I've taken a backup pre-3.3 so I can always revert back to the previous version.
Also, are there any issues you're aware of with the new uploader design in relation to the 'gallery' / 'portfolio' system in your theme?
Other that that, LOVING the theme! It was a significant step up from my last premium theme. This one is certainly deserving of its 'Premium' title.
All the best