Did you specify the --failover-only flag (or set that option some other way)? Default failover leaks work to backup pools and is supposed to.
I just copied my command line shortcut over from the previous version. I never knew about "--failover-only" before.
**later**
That did the trick. My pool list is abcpool.co, btcguild.com, api.bitcoin.cz, mining.eligius.st. Without --failover-only it seems to just switch among all 4 as if it were load balancing. I'm running 200 Mh/s on cable modem.