All of the sudden tonight, I go to sync my ipod and I get a "usb low power notice" telling me the USB ports aren't enough to power my ipod. Oddly, I am able to run a wireless mouse and keyboard, and now have my ipod plugged into a USB powered hub, where it says it is charging. But it will not sync with itunes and it will not show up on my desktop. Is this an itunes issue? an ipod one? My palm using my USB ports syncs just fine, and my hub and keyboard are working great, which makes me think it might be an ipod/itunes issue. Any thoughts? EDIT: This is a 900mhz G3 ibook running OS 10.4.7, and my ipod is a video ipod with the latest update.