I updated to 3.0 yesterday and then synced my iphone (as it does automatically after an update). Today I went to plug my iphone into my computer and nothing happened, no charging, doesn't show up in iTunes. It still charges fine from the wall so I assume it isn't a bad cable. I have tried resetting both my computer and iphone while the two are connected but it hasn't helped. Any suggestions? I have a Powerbook G4 and a iPhone 3G Thanks in advance.