I managed to get to another menu ( NOT by following the "read me" advice however-=-menu is totally different - I tried " other stuff" instead) I can highlight " make card bootable" but pressing enter does nothing, therer seems no way to make it react even when highlighted !. Also when scrolling down the menu list the display of CHDK goes off intermittently, pausing brings it back but then I have to re-route through the menu to get to debug parameters yet again. Is this supposed to happen??