Buttons Broke Bad

[dojo]

I'm using UR v1.2a under NT4_sp6a and Firefox 1.0.6. I have downloaded & installed the UR_Mozilla.reg utility.

When using UR's internal browser on the following url, I can't hyperlink using most of the buttons on the left side of the screen: http://www.medisoft.com/

The buttons labelled HIPAA, Contact Us and Register do work... the others do not, but they all work fine in the external Firefox and IE6 browsers. There seems to be some kind of incompatibility between these specific buttons and the internal browser pane. Any idea what's going on?

One more thing... is v1.2a the latest release that operates under NT?