I have the same Camera Widget problems using Poser 6 on a Windows 7 machine.  As hborre suggests, I suspect it has something to do with YouTube (or hulu) like sites.  Touching the spacebar DOES seem to fix the glitch.

There's another thread about this error, and I thought this was just another Poser 8 (and up) problem but that is not the case.  I've used Poser 6 since its release and never ran into this until upgrading to Windows 7 and visiting hulu.com.  My older machine runs Windows XP and Flash is diabled.

Best Wishes,
Rªnce