I would appreciate it if someone could correct or validate my understanding of how properties work: In a nutshell, a property, once set, cannot be changed. I thought there was a concept of "user properties", which couldn't be changed, and "non-user properties" which could be changed. However, a check of the source in Property.java shows that both types are treated identically. My apologies if this has been covered before. I can't always keep up with the list and have yet to locate a quality archive. BRIAN MURRAY [EMAIL PROTECTED] Vanderbilt University ICQ: 10506241