We hope you've been enjoying the Winterfest update! We've just released a new patch update that fixes a number of bugs that you've reported, namely issues rendering on NVIDIA cards on Mac OS X. We've also optimized the rendering code and fixed Mac users not being able to change Anti-Aliasing preferences.
Additionally, the dedicated servers should be functional now. There were a few issues with them trying to use the new rendering code (without any graphics, you can imagine why they crashed), but this new update should fix that.
As always, we hope you enjoy,
The Platinum Team