Many property cases for DIGIC II and III cameras are listed at
PropertyCase - CHDK WikiThe A560 (a DIGIC II camera?) has some property cases that are different from both of lists given above.
Property 143 is flash state: 0=auto, 2=off
Property 105 is related to display state: 0=display on with full icons, 1=display on without icons AND display off (??)
Property 5 is AF assist beam state: 0=off, 1=on
It took me a while to find these. Maybe this will save someone else the trouble.