Browser not supporting JavaScript?

[Guest Fred01]

I was trying to check the connection speed of my 750v via http://www.dslreports.com/mspeed.

The page displays the following error message:

"if this page remains, then your browser does not fully support javascript, and we cannot test your speed accurately"

It seems to me that some other folks have used that site successfully - what am I doing wrong? Any setting I need to change? Registry hack?