I'm also having the same problem, only with load 2.1.1. The wrapped exception is "java.io.FileNotFoundException:
http://dlc-cdn.sun.com/javafx/pgz/javaf ... 1a.jar.pgz".
That file is not even located on sun's server any more. I've tried all of the recommended steps of removing certs, deleting folders and reinstalling loadui. I've even removed all Java instances, installed Java 7, then reinstalling LoadUI. No soup.
Is it possible that we could manually load this javafx-rt-windows-i586__V1.3.1_b101a.jar.pgz file? I am attempting to use LoadUI and would possibly be purchasing a license of the pro software if it proves to be the solution to our needs. However, its really frustrating that I cant use the software.