I've been making photosynths for a few years on my travels but in China I can't seem to log in via the Photosynth app. I get this error:

(In fact I hadn't realized until now that it's tied in to Windows Live.)
Oddly the Photosynth website is not blocked. You can view synths fine.
I've done some searching and can't find anybody else talking about not being able to make synths while in China.
It's been suggested by user djerry that it could be my proxy settings, but they seem to be set the recommended way as in the blog post about the issue:
