I've been through all the instructions and formatted my SD card and config files etc.
I've then reprogrammed the V2 using Scan&Tune.

I can read the existing tune off my PCM and can "Program Cal" without problems, but can't "Program Full" without getting the aforementioned script error (even trying to program back the tune I've just read)

Firmware & bootblocks are up to date. What else can I do?