Hi nortstudio. Do you have a mac? (it's important to tell people what you have so they can help)
If you do, then see this link
The EBL software is very problematic for OSX. You must delete nearly everything and reinstall. And anytime you do an update for Leopard (or Snow Leopard), you must reinstall EBL. At least this has been my experience. Please tell us how you make out.