AHAAAAAAAAAA! I figured out the problem! I was using a 2205, not a 2205MSO! I can recreate your problem on 6.50.3, however the latest beta version and the latest standard version seem to work. So 22.214.171.124 and beta 6.7.15. 6.6.57 can be found on the normal download whilst the beta can be found in the following link:http://labs.picotech.com/#psw6
Let me know how you get on.