Wow, thanks for this. Must give it a go. I've tried loads of different distros on our Eee 701 4G, and though some have been OK, they've never really been tuned enough for the low spec. Peppermint Ice is the one we're using at the moment, but it's got a funny habit of just hanging when you're in the middle of something, and just shows a black screen with no option other to hard reboot.
This might be the answer.