TeXworks ⇒ Help Links don't find Browser

[just_bruce]

Just installed MiKTeX 2.9 latest with TeXworks on Windows 7, brand new computer. TeXworks works fine, but when I click on the links to the manual (file://) or TeXworks home page (http://) I get the error pop-up

Unable to access <...resource name...>; perhaps your browser or mail application is not properly configured.

I use Firefox, latest version, as my default browser, and it works fine for everything else.

Anyone know how to fix this?
Thanks so much.