replication conflict when use BEGIN TRANSACTION COMMIT TRANSACTION

Ok let me explain my problem
I update table abc to SERVER A
SERVER A push a replication to SERVER B
and SERVER B push to SERVER A and SERVER C
SERVER A and C are configure to replicate to SERVER B and
SERVER B is configure to replicate to SERVER A and SERVER C
(same tables are replicate)
I have no problem while I not use BEGIN TRANSACTION UPDATE... COMMIT
TRANSACTION
When I use BEGIN TRANSACTION UPDATE... COMMIT TRANSACTION I got a conflict
error
supp info:
2 Queued update conflict. Subscriber wins. Updating Publisher ...
"rl" <rlavoie@.lgs.com> wrote in message
news:%23jnEqEGjFHA.1232@.TK2MSFTNGP15.phx.gbl...
> Ok let me explain my problem
> I update table abc to SERVER A
> SERVER A push a replication to SERVER B
> and SERVER B push to SERVER A and SERVER C
> SERVER A and C are configure to replicate to SERVER B and
> SERVER B is configure to replicate to SERVER A and SERVER C
> (same tables are replicate)
> I have no problem while I not use BEGIN TRANSACTION UPDATE... COMMIT
> TRANSACTION
> When I use BEGIN TRANSACTION UPDATE... COMMIT TRANSACTION I got a conflict
> error
>