I'd like to mention a solution which was posted to our Facebook wall by Tom 'FANnatiker'.
Quote Originally Posted by Tom Nicklisch
for all people who have problems with the 3.0.19 on OSX 10.7.5

i use PlayOnMac (its free) and there you can install teamspeak for windows
winebottler is nice but there crushes the ts

WinOnX and Crossover don't know

or you use a Virtualmachine on VMware Fusion or Pallels - i used xubuntu and it works fine
Thanks for sharing your Suggestion, Tom.