iPhone keeps erasing?

[Pain]

Okay, so I have this problem.

I connected my iPhone to my home computer, but after a while, everything WIPED OUT and then I restored it on this other computer. So, the other day, I wanted to put an audiobook from my home computer onto my iPhone, but it didn't work, because it said it'd erase everything. I saw I didn't have the 'manually manage' checkbox on, so I went onto the other computer, checked it off, but it still says it with the 'Warnining!' thing... how do I fix?

 

[siufai]

You can only sync your iPhone to one computer

 

[Pain]

You can manually manage it... drag and sync.

 

[TEG]

Not for the iPhone. Only on the iPod.

TEG

 

[domness]

Just click and make sure it's manual, drag the songs and sync. It should then work on both computers. It will probably wipe the first time but then not again thereafter.

Not for the iPhone. Only on the iPod.

TEG

Yes, you can do it manually... :| What are you thinking of?