"Whycan't my iPhone download songs from my computer?

I just bought an iphone. But when i try to download my mP3 files from my computer, a glass pops up and says "sync have been candelled, your device have timed out." please help

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Answers:    Are you running a PC? If so, switch to a Mac, that'll solve your problem.

If you can't do that, Restore your iPhone and restart you computer.

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If the device have timed out, does the computer have the correct usb ports? USB 1.x or 2.0?
Should be usb 2.0

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