Remote desktop into Vista does not show Current user..

As the title says...

Have a few remote machines. On all the XP ones when I attempt to
connect to them and a user is currently on I get the usual:

->The user <Domain or Computer Name>\<username> is currently logged on
to this computer. If you continue, <username> has to disconnect from
this computer. Do you want to continue?-

However if connecting to a Vista machine the is in use I only get:

->Logon Message:-
-Another user is currently logged on to this computer. If you continue,
this user has to disconnect from this computer. Do you want to
continue?-

Well, I don't know, because I could be asking to kick my boss off
:shock:. Physically at the remote machine It shows the current user.
Just not remotely connecting.

Cheers.


--
ekul