Today, (~11-12PM PST) Razer released their new drivers's on their website.
Head to Razerzone and grab the latest version, with quite a few bugfixes, including support for the windows forward and back button's as programmable buttons now. The driver's also introduce a new optical tracking forumla solving past acceleration issues. While including some more fixes i'm sure..
Download: Razor Diamondback Drivers v126.96.36.199