I've found that certain changes I make to the OSD can cause a boot failure or a crash (camera shut down) as soon as the OSD is displayed.
For example, moving the battery percentage display to the top of the screen causes a camera boot failure, the only remedy for which is to delete /CANON_DC/CHDK/CCHDK2.CFG and start over.
Am I doing something wrong or is this a known problem?
Is there any reference showing which OSD modifications are permissible with this camera model?