For some reason, I am unable to update or restore my iPhone 4 or my spare 3GS to 4.0.1. I keep getting this error message after it goes through the "Extracting Software" and "Backing Up iPhone" steps:
Does anyone know how to get past this? The iPhone servers shouldn't be busy, and it was saying this a couple days ago, too. I've tried restarting the computer, hard rebooting the 3GS, switching the USB cable to a different port, switching to a different cable, and restarting my router, but nothing seems to be working.
I can connect to the iTunes store just fine, and it does this both on my account and another account.
This is frustrating. Any ideas?

Does anyone know how to get past this? The iPhone servers shouldn't be busy, and it was saying this a couple days ago, too. I've tried restarting the computer, hard rebooting the 3GS, switching the USB cable to a different port, switching to a different cable, and restarting my router, but nothing seems to be working.
I can connect to the iTunes store just fine, and it does this both on my account and another account.
This is frustrating. Any ideas?