Anyway its all the same. ALT button in playmode brings up the Add to Print Menu and ALT Button in regular mode does nothing. It is supposed to show the blue ALT CHKD confirmation in the lower left I believe.
Did you assign a camera function to the Print/Shortcut key in the Canon menu ("Set PRINT button") ?
Here is my original post. Did I miss something
"A note on the ALT button ISO shift bug:
If I set the ALT button to FACE from PRINT , this seems to disable the ALT button in CHDK when I turn the camera off and back on. This makes it so I can't excess the CHDK menu anymore."
The only options available in the Stock Cannon Menu to set the ALT Button are:
Not Asssigned
WB
Custom WB
Red Eye Corr
Digital Tele Converter
Display Overlay
Display Off
There is no option to set to face in Cannon's stock menu ("Set PRINT button"). There is no option to change to Face unless you use the CHDK menu. If I am wrong please provide idiot-proof steps.