Thank you for your reply.
I changed the set up. On the setup of suscriber, I create a new table without specifying its size and location (Do I have to????). This time I got a different error when the merge agent ran. I checked the session details and see the steps were success as to initialize, bulk copy the table and then come the error message: 'The schema script '\\servername\unc\tablename.trg could not be propagated to the subscriber.'
BTW: I have another question: when I set up the new pull subscription on the subscriber, the wizard ask me to specify the sysnchronization Agent Login. I use the sa user name and what password should I give to the agent? the passwork to login to the publisher? or subscriber?
Thank you so much,