My G10 will automatically take 3 photos in one shot on if it is not on auto mode. Even if I've already set it on single photo mode.

When in Any auto mode or P or A your camera automatically will adjust your shutter speed for ambient light conditions. So if your having issues where your camera is choosing to slow a shutter speed and you photos are coming out blurry then there isn't enough light either because other settings in the camera are limiting light or where ever you are taking photos is poorly lit. Setting your ISO Higher should allow the camera to increase the shutter speed, but will often introduce noise to your photos. The more you play with your camera and learn digital photography the more you'll understand how to make your photos the best they possibly can be. For the time being if getting a no blurr shot is key put your camera in S mode which means shutter priority this will allow you to control and lock your shutter speed and set your ISO to auto this will force the ISO and Aperture to change instead of your shutter speed to get a good photo.

What do you have the white balance set to? What happens if you change to another setting?

You can try a few things to see if they help

• First is to power off the camera and detach and reattach the lens just to make sure you are getting a good connection for the auto-focus
  
• The second thing you want to do is shoot in RAW format to be sure you are able to retain the most information in the image.
• Make sure the noise reduction is turned off in the camera menu
• If you aren't using a cable shutter release you can opt to have the shutter delay after pressing the button. This will allow the camera to stop shaking from you pressing the button before it releases the shutter. You can find this option in the menu. Camera 2 > Anti-Shock > 3 sec.
  
• Another consideration is the quality of the lens you are using. The G10 has great glass while a kit lens from Olympus may not give the fidelity throughout like the G10 does. You can try another lens if you have one available to see if this is the case. The G10 is a single purpose camera that has a great lens on it. The E-500 may need a better quality lens on it in order to achieve the sharpness you desire. Olympus makes a great 50mm macro that has an f2.0 brightness.
• You can also set the camera to manual focus and then choose to do focus bracketing. This is a little more involved and you can find out how to do so in the manual for the camera.

Advanced Camera Manual for E-500

l For manual copy density adjustment, press the AUTO/
MANUAL/PHOTO ( / / ) key to select
MANUAL ( ) and adjust with the LIGHT ( ) and
DARK ( ) keys as desired.
l For photographs, select PHOTO ( ) and then adjust with the
LIGHT ( ) and DARK ( ) keys as desired.
l There are 9 exposure steps indicated by 5 indicator lights. (The
indicators light up one or two at a time.)
Successive pushes of the LIGHT ( ) key will change the
indicator lights in the order (3) / (3•2) /(2) / (2•1) / (1).
Successive pushes of the DARK ( ) key will change the
indicator lights in the order (3) / (3•4) / (4) / (4•5)/ (5)
The automatic exposure level can be adjusted to suit your copying
needs.
1 Press the AUTO/MANUAL/PHOTO ( / / ) key
to select the PHOTO ( ) mode.
2 Press and hold the AUTO/MANUAL/PHOTO ( / /
) key for approximately 5 seconds.
l The PHOTO ( ) indicator will go out and the AUTO indicator
will begin to blink.
l One or two exposure indicators corresponding to the automatic
exposure level which has been selected will light up. The factory
default setting is level “3”.
3 Press the LIGHT ( ) or DARK ( ) key to lighten
or darken the automatic exposure level as desired.
4 Press the AUTO/MANUAL/PHOTO ( / / ) key.
l The AUTO indicator will stop blinking and will light up steadily.
l This automatic exposure level will remain in effect until you
change it again by this procedure.
Automatic exposure adjustment
AUTO

go to the color mode, while taking a photo on the P, you have lots of amazing modes there

CCD going BAD !!

just call sony they will do it FREE it is a known problem BAD CCD Failure

See link for the sample serrvice sdvisory and call SONY for repair procedure

PlS RATE ME WELL

Using camera options in Capture mode
In Capture mode, press < > to access the following
options:
• Record video: switch to Record mode.
• Shooting mode: take a photo in the following
modes:
Single shot: take a photo in Normal mode. You
can select whether or not the camera automatically
saves a photo.
Multi shot: take a series of action stills. You can
select the number of photos the camera will take
and the shooting speed.
Mosaic shot: take several stills and save them in
one frame. You can select the layout.
• Effects: change the colour tone or apply a special
effect.
• Frames: apply a decorative frame.
• Flash: determine the use of the flash.
• Timer: set a time delay before the camera takes a
photo.
• Go to My photos: access the My photos folder.
• Camera settings: change the default settings for
taking a photo.

Not sure what you mean? You have 16 single shots one after another Now what do you want to do? Turn the camera back to single shot? Read the Manual -Full manual in PDF format on disk Do something with the shots themselves? Use image editor in computer Do none of these? Try another way of putting the question

Take the battery out and re load the operation. This will do a reset of the operation modes.