Just last week I got a couple of isights for my girlfriend and me. It runs perfect on my powerbook but her ibook, 1.33mhz, 768 RAM, she says not so well. He says her video is choppy and not very responive. I was wondering if anyone else with an ibook of those specs or lower had trouble with an isight, or wished it had better video. We both use high speed internet, so I doubt that would be the probably. Any advice would help.