Please specify the IE and JDK Version used to acheive the desirect goal.Also,mention the Operating Systems that you have been using to achieve the desired result.
From what you have mentioned, I feel that it has something to do with the Client browser's JVM .You can try upgrading the Virtual Machine by following the link :
http://www.microsoft.com/java/vm/dl_vm40.htm
Pooja M.,
http://home.attbi.com/~pooja.mohan