Try this: Delete those 2 or 3 contacts and then add them back. You might
have to have your contacts do the same for you.

--
Regards


Ron Badour, MS MVP for W98
Tips: http://home.satx.rr.com/badour
Knowledge Base Info:
http://support.microsoft.com/default.aspx?pr=kbinfo



"Luiscat" <Luiscat@discussions.microsoft.com> wrote in message
news:06D33483-E3CF-41BF-BCA0-A1285F1E9EED@microsoft.com...
> Windows messenger 5.1.0701
>
> I am using only in local network with Exchange 2000.
> I can't send messages to 2 or 3 contacts, they didn't block me and the
> problem is only from my computer. If i logon another computer it works
> fine.
> Any ideas?
>