windows vista and problem 81000378

I have just got a new laptop and it has windows vista on it! i have
downloaded msn messenger from the website and it is the latest one! i try
signing in and it comes up with the error message of 81000378 and says that
my contact list is not ready, try again later. on my normal computer my msn
works! i have tried everything - changing date and time, firewall settings,
even doing this search for cmd and lots of other things like that! im not
sure what it is! but i no msn is not having difficulties because it works on
the other pc. can anyone help?

ooo by the way im really new to this site but i think i got it right, so
sorry if i have put it in the wrong group and i really hope all the groups
are english!
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PreciousDove mwa