So I am using the red ardupilot board with the blue shield, and when I press upload in Arduino it just says  uploading to I/O board and never stops.... no error or anything but never finishes. I have tried unplugging the GPS and I did go to the device manager and checked off the set RTS on close. It also says Binary sketch size: 23776 bytes (of a 30720 byte maximum) under the uploading to I/O board but no errors or anything. I am using the FTDI from the ardupilot store too.

Thanks for the help

-Chris