Was so excited to install CHDK that I did my first try as soon as unpacked my newly bought S90. Things went well at first and I saw "Firmware update" menu in playback mode and confirmed the upgrade. Sadly the battery died suddenly and I had to recharged it. After I just can't see the menu anymore! Tried everything I thought of (using camera to re-format the card, copying a fresh copy of CHDK to the card again, resetting camera settings to factory default etc.) but ended up w/ no luck.
One of my guesses is the camera checks the version number of PS.FI2 on SD card and then decides whether to show "Firmware update" so CHDK's PS.FI2 must have a higher version number than the stock one (1.01c in my case). But did it write its version number somewhere in the camera during loading? Is that the reason of "Firmware update" not being shown anymore coz the camera thought it has the latest firmware already?
Really want to be able to manually start up CHDK as needed. Any hint/help would be much appreciated!