> PS: Try running in Safari, it worked for me (but it was slow).

Folks, as a Microsoft employee, I can hopefully redirect you guys to
the WPF/e team and get some of your issues sorted - send me a mail at
sriramk _at_ microsoft.com with what doesn't work for you, feedback,
etc.

http://msdn2.microsoft.com/en-us/asp.net/bb187454.aspx also has a
great list of places where you can post questions, bugs and so on. I
know that the WPF/e team actively monitors those forums - so you
should be able to get someone from the team to respond pretty quickly

Thanks,
Sriram
http://www.sriramkrishnan.com/blog