crytek released a patch for the mp-demo.

Changelog:
* "Press Start to Begin" has been changed to "Press Enter to Begin" on the main menu ->
* Ping changes in server browser - no ping for anyone now (all 0) ->
* Fixed crash if getting force disconnected from a dedicated server (although the force disconnect issue has been resolved anyway)
* Account creation now works properly
* G35 headset fix now implemented
* People not able to sign in with certain characters such as "-" or "numbers" in their username, now can

http://winfuture.de/news,61870.html