Note to self, and possibly others.

I just flashed the Optimiser firmware using
Code:

avrdude -p m32 -c abcmini -e -E noreset -U lfuse:w:0x1F:m -U hfuse:w:0xDF:m -U flash:w:Optim_32.hex -U lock:w:0x3C:m 

which is the same as listed on the web site, except for the file name.

The Optimiser must be powered when flashing and this time I just connected it to the bike.

After flashing, the Optimiser display showed "Quickebike v0.96" and nothing else, even after a power cycle. I don't remember that happening before, but it went away as soon as I removed the flash cable. That was a relief 

Voila