yeah, I just think I'm doing it wrong. I think all the fuses are reset when you flash the bootloader, so maybe I'm just makeing changes in the incorrect order.
I think I should
- change bootloader speeds F_CPU etc, flash bootloader
- change fuses, for slower clockspeed
- load my program
but somehow I seem to be meseeing it up, it never runs without a resonator in. I have a pretty simple device created, I just need it to run at lower voltages, and the time to be reasonably correct. I guess I'm stumped for now.