Error Message with Virtual Worlds when students login

I am seeking help to assist me with an error message within Robot C Virtual Worlds. Virtual Worlds works for me logged in as a teacher, however when my students login to their computers they receive an error message. It seems as though my district Internet Security is not allowing Virtual Worlds to run. Here is what the error message states:
“This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator.”
Unfortunately, the tech staff at my district does not know the fix. Any thoughts out there would be beneficial. Thanks in advance, Shane

Not sure I can help you with this here on the forum, your best bet is to create a support ticket at http://www.robotc.net/support/