how can i use load-balancing in borland appserver

i install BAS4.5 on machine A and B.
then i run client 10 times .All clients call A and if i restart both appserver. Sometime it calls B.


i found some doc that wrote that i must set this flag on all appserver

vbroker.naming.propBindOn=1

but when i do my client lookup. it got null everytime.

thank you, shunkeng