Hey, --ubuntu 9.10 here-- Reporting: The problem with Ubuntu freezing seems to be Chrome. I was unable to determine how to disable flash, so I made FF my default browser, removed all addons (except the Ubuntu one) restarted FF and surfed, watched a youtube, watched 3 Jon stewart shows, did everything but have a million tabs (which is so much easier in chrome because chrome is faster and more pliable and keeps such a good history and is more convenient)
But I digress. My Ubuntu quit crashing. And that's the rest of the story.
Thanks intgr for making me think of this, and with chrome I was always at 100% ram, pretty much.
I'll try your page.