As this is a beta release, the best place is to ask is http://ubuntuforums.org/forumdisplay.php?f=305
. It's a fairly large and very friendly community - lots of people seem to run Ubuntu development releases.
Beta releases always have bugs, some of which are quickly discovered and can be worked around, plus others which are configuration-specific and need to be reported to the developers for investigation. If you run a Hardy beta you should check that forum periodically (before you run updates).