2: Enter your software serial number: You can find that on yor Brainsight CD, or written on the inside cover of your Brainsight user manual. If you cannot find your serial number (and you current Brainsight Mac is broken), please email me again with the serial number of your Pointer P-xxxx, coil or subject tracker (only one of these is required) and I will retrieve your serial number using it. Select “View eligible Downloads”) to get the list of software to download.