Unhandled exception while browsing
 

I was just trying out the new version 5.0. After visiting a webpage and then going to any other item in the data explorer pane I get an unhandled exception.
"An unhandled exception ("undefined' is null or not an object') occurred in UltraRecall.exe [2572]."
This occurs a few times and then I can continue working in UR.
I am using IE7 on Windows XP SP3. Is this supported or is moving to UR 5.0 conditioned on moving to IE9 ?

I don't have an XP system with IE7 to test on, but I'm not seeing that with Windows XP SP3 + IE8.

is there a way to make use of the firefox control available here: http://www.adamlock.com/mozilla/ ? I guess that would make browsing so much faster.