Facebook post (via graph api) stopped working - is there a limit?

I'm writing a Windows Phone 7 app where I'm posting comments to the users feed on their behalf. I get the user to auth in the usual way (browser) and get an access token. All standard stuff that's been working for the last week. But today the posts have stopped working. I just get a "Remote Server not found" back from my web call. Here's the url that I'm using to post (this used to work perfectly before today):

https://graph.facebook.com/me/feed

Then I add these two form parameters: access_token=...&message=...

I pretty sure the server is up and the access token is good since I can successfully query the users basic profile info using a url like this:

https://graph.facebook.com/me?access_token=...

I have been debugging this flow a bit so my hunch is that Facebook is thinking I'm a spammer and has turned off program开发者_运维技巧matic posting. Does this happen? If y, what's the limit and what's the remedy? If n, any debugging pointers would be helpful, the new facebook docs are very sparse.

Thanks!

Found it, hoping others don't waste as much time as I did on this... So while I was debugging my app (that posts to a users feed) I was sending the SAME MESSAGE over and over again. Looks like facebook doesn't let you do that - which makes sense I guess. The "Remote server not found message" strangely enough is actually part of the OAuth 2.0 spec. I get the error but the "Remote Server not found" is pretty confusing...