I installed the AIR updates on 2 machines runnning PP2010 and Windows 7 64 - No problems for me.

But I have had the same problem last year (with Windows Vista 64) on one machine with PP2010: A Delete Figure would hang Poser and also a Render would never fiinish. In my case the problem was caused by a conflict with Outlook Connector (an add-in for Outlook).

When Poser was hanging I could close Outlook (and the add-in) and Poser would continue. Usually the problem would vanish after a reboot and reappear after a few days or sometimes weeks. After I de-installed the Outlook Connector the problem never re-appeared.

I have seen a report mentioning another application which would sometimes interfere with Poser. So one simple thing to try when Poser is hanging is to close other applications you have running to see if any of them is interfering with Poser.

There may be another cause, but this is a simple thing to try