I have used CHDK on my 2 gig Eye-fi card for several years with few problems. Today when a picture is taken with CHDK enabled, the activity light to the left of the optical viewfinder stays on, the led screen goes blank, and no buttons have any effect (power on/off etc.).
If pictures are taken in normal Canon, non-CHDK mode, there is no problem.
I used Stick to re-install Chdk, and the problem persists.
I have to remove power- the batteries or ac connection, to get camera control back.
A standard sd card that also has chdk on it works fine in my camera.
I prefer to use the Eye-fi card because of its convenience. But I really appreciate CHDK's features.
The only thing I have done differently recently is use a number of scripts- especially the focus/zoom script.
Any help appreciated.