--browser chrome does not work

[ghost]

Out of the box nothing happens.
After downloading and starting chromedriver it still fails with:

RuntimeError: RuntimeError
     (UnknownError:13) An unknown server-side error occurred while processing the command.
     Problem: POST /session//timeouts/async_script
Build info: version: '2.44.0', revision: '76d78cf', time: '2014-10-23 20:02:37'
System info: host: 'jonas-mbp', ip: '192.168.2.100', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.10.2', java.version: '1.8.0_25'
Driver info: driver.version: unknown