The USB drivers for the SA10 may be missing on your computer.
Click windows Start.
Type USB Drivers
Click on USB Drivers icon.
Open FTDI USB-Serial folder.
Run the setup as administrator and try again.
Can't get a connection anyway with FTDI downloaded?
- Make sure that you have the latest version of BTS11 downloaded.
- If you have older SA10/SA5 Read SA10 Install drivers