Has anyone had or heard of an issue with a Powershot G15 getting stuck with the focus locked? Mine has been doing this a lot recently and sometimes a quick double tap of the shutter will fix it and other times it remains stuck until the picture is taken. When it is stuck it won't let me zoom or review photos.
I'm wondering if this is a mechanical issue in the shutter button or if there's some setting that I'm unaware of and somehow I'm activating that.

