I have - without any luck may I add - to add `climateprediction` to boinc on my home PC.
I copied and pasted the Url and Key.
But I keep getting a message saying that the URL for `climateprediction` does not start with `http://` but that is the URL I keep geting sent to me.
Obviously there is a gremlin somewhere with either boinc or climateprediction.
I would love an answer to this ???, but I have not got my fingers crossed:-(

So the URL you are pasting is

http://climateprediction.net

?

Ensure there is no space before or after the URL or key when copying and pasting.