I have had many, all Canon , my latest sd1400 is always dead and I have tried new batteries from cheap ebay to a genuine canon, it will work fine if you install the battery and go shoot but leave it for 1 day and dead!
My little 2mp elph was a great camera till it just died.... the sd 1000 lost its lcd , the waterproof d10 was horrible for its size and perfomance not to mention the focal length was crap.
Today my sd1400 said lens error so I smashed it on the sidewalk!
Any suggestions on a good p&s??