I have an iphone 3G and use an older macbook running OSX version 10.4.11.
I have never experienced any problems synching my iPhone... now suddenly my laptop will not even recognize my phone as a device and so it is impossible to synch. No longer does iTunes open upon connecting my iPhone.

I have restarted my computer and my iPhone. My computer says it is using the latest iTunes, 9.2.1.

Does anyone have any thoughts ? Is my OSX just too dated all of the sudden ?
Is it a hardware problem with my iPhone ? Why would iTunes not even recognize my phone all of the sudden ?