There's nothing in the event log that looks relevant to this.
The full error goes something like "We were unable to sign you in to Windows
Live Messenger, possibly because of a problem with the service of with your
internet connections. Please make sure you are connected to the Internet."
Then it gives the error code 81000306. Of course I am connected to the
Internet and when I use the Connection Troubleshooter in Messenger, it shows
that all test results passed. It makes no sense. Like I said, myself and the
one other guy in the office who are now on Vista are the only ones having
this problem here. The XP users are all signing in to Messenger with no
problem.

"Bill Frisbee" <wfrisbee@comcastx.com> wrote in message
news:0F33071A-A610-4264-88C6-1A0DDB457CB9@microsoft.com...[color=blue]
> David,
>
> Can you be more specific with the error? Is there anything in the event
> log?
>
> Bill F.
>
> "David McGown" <dmcgown(nospam)@apriso.com> wrote in message
> news:9DF2DE6F-2644-43A0-BCEC-C6421ED2DDE1@microsoft.com...[color=green]
>> I've installed Vista (Build 6000) and Windows Live Messenger (Build
>> 8.0.0812) and cannot get Messenger to sign in. It gives the same error
>> every time - 81000306. This is a fresh & clean Vista install and the
>> local firewall is disabled but there is a firewall on our router. Since
>> all of our XP SP2 users have no problem with the same version of
>> Messenger, I am guessing that there is something different about the way
>> Vista works with our router. My IT guy is reluctant to change anything at
>> this stage unless I can make specific requests about what needs to
>> change.
>>
>> Any ideas what to change that might fix this? Is this a known
>> incompatibility with Vista and Messenger?
>>
>> Thanks.[/color]
>[/color]