OK mate,
Sounds like it is probably your camera.
Take it back if you can. Something is not right.
I now use a Pentax Optio W30. These cameras are astonishing- 7.1 megapixel, (3X zoom which is just adequate) but where they really shine is in the big screen on the back. They take very good macro and landscape and are waterproof.
They have their own battery that last for ages. The camera comes with a battery charger. Value for money I think is superb.
Another very good camera is a Fuji SLR look-alike model S5700.
robin has one of these. 7 megapixel and 10X optical zoom. Pic quality is slightly better than the Pentax but the camera is fairly bulky for what it is. It taks 4 AA batteries and can be pretty heavy on them.