I've been happily mining Litecoins with cpuminer on a Mac Pro running 10.8.3 for a few weeks. Since yesterday I keep getting an error:
HTTP request failed: Failed to connect to mine.pool-x.eu:80; Connection refused
json_rpc_call failed, retry after 30 seconds

I didn't change any settings, in the MINERD.sh file that I created all the addresses and login details are correct. pool-x.eu is up and seems to be happily mining away, and I can log into my account as usual.
Of course the site doesn't have any links for support or FAQ or similar.

Any ideas what could be the problem?

Thanks!!