Not able to start LOADUI

I finally got this to work after screwing around with it forever. It turns out that the reason the steps were not working was that I had two dozen Java versions installed, some dating back to the prehistoric era. As a result, when I ran LoadUI, Java 1.7 would start - however, the control panel app was managing the 1.6 installation. Once I removed all older versions of Java I was then able access the 1.7 control panel and clear its cache. I did also have to turn off "Enable online certificate validation" from Advanced->Security->General section of the Java Console as fromano mentioned.

-Jeff