I usually would try to find a solution for this myself with help of the forum, but this time I'm a bit short in time.
I'm leaving on a diving holiday tomorrow night, and just got a second hand Ixus850IS/SD800 (with firmware ver gm1.00e) and its waterproof casing.
The print button is not accesible from outside, and I've seen some ports that have an option to change the alt button to the display button, but only for certain cameras.
As I have no previous experience with editing/compiling chdk code, and don't have time to learn and try before leaving, I wonder if anyone has done this before for this camera? Or maybe someone knows of a certain version/file from another firmware I could try out?
Any help would be greatly appreciated...