Problem with JTree

I am trying to expand a node in a JTree programactically when a class is constructed. I can see it expand it, but it immediately collapses it again.What could the problem be?Thanks.
[202 byte] By [steve_costina] at [2007-9-30 2:22:30]
# 1
Thinking about it i am actually adding some nodes to it after it's expanded, so how do i keep it from collapsing?
steve_costina at 2007-7-16 13:31:52 > top of Java-index,Archived Forums,Swing...