Don't know what the problem is in this thread cos I've had no trouble with the USB trigger I made following the design from <chdk.wikia.com/wiki/USB_Remote_Cable>. Had to "enable usb" and "enable sync" in the CHDK menu tho. BTW I found that a short dab on the button set the focus and exposure and a second dab took the pic almost instataneously. A longer press did both.
