Back to local cousel problem

I have enabled Remote Desk Top Connection in XP Pro. in Machine "A"
I conected from remote Machine "B" to "A" by RDP client in machine "B"
I got pop window saying that i have to logg off the local.
I clicked Yes.No problem i logged in.
Then I disconected myself from the remote mahine, went ot the Machine "A",
wher i found a pop window asked me to unlock the bu the Adminstator ot Local
user.
Could i just have the Local user log in automatically after any remote user
is disconected.
Note: i will not abel to use the User Fast switch futuear according to 3rd
party sotware licnce issue