Back from holiday!

Thanks for the advice and kind words; the picture was never intended to be viewed at full size but the fringing shows up even and 50%.
I don't know if the original firmware applies corrections for chromatic aberrations.
Moving on, as I just returned from my one-week two-wheeled holiday, I tried to use the Purge Raw feature. Perhaps a glance at the manual would have helped me, now I'm left with only one RAW

Fortunately almost all pictures were underexposed by 0.6EV and shot at 50 ISO with maximum quality on, so perhaps not all is lost.
It would be useful to have a thread to help people develop a better sense at developing photos. Having a thread for CHDK-only photos is nice but the choice of features is limited.
It does help me that I have fast ev correction and battery indicator and other nice features but:
- I don't use scripts
- RAW mode takes up too much space when you're away from a computer and with a lot of opportunities at hand
- my camera already does bracketing
-...
In the end you are left with pictures that would have been possible without CHDK but with a lot of trial and error (and out of battery messages).