Arduino Nano R3.0 upload error

Driver Provider: FTDI
Driver Date: 1/18/2013
Driver Version: 2.8.28.0
Digital Signer: Microsoft Windows Hardware Compatibliity Publisher

I'm beginning to think the USB to serial is bad, considering it programs fine when bypassing the chip. I've checked and re-checked the drivers, they are the correct ones. I ordered a new one, and if I can't get this one to work I'll just return it. Any other thoughts?