Cross post error

Hi all,

I'm having som difficulties getting cross posting to work.
This is what I want to accomplish.

When a user writes an article on his blog about Windows Vista, we want him to
cross post this blog entry to the Windows Vista blog on the same Community
Server.
But when I enable cross posting for the user we get the following message in the
eventlog:

Cross post attempt to the url [http://blogservername/blogs/metablog.ashx] failed
for PostID xxxxx. Error message returned was: Response from server does not
contain valid XML.

As far as I know cross posting is configured correctly.

Anyone any ideas? Or is there a better way to accomplish this?

Thanx

Bump...