Can not play back pictures or use any of the function buttons

Delete button will only work in the PLAY setting (for playing back the images on the LCD screen) OR, immediately after you've taken the photo and it is still displayed on the screen.

You can try using NIMh batteries instead of using of using the conventional. Most other cameras with similar problems have turned to function normally by using the above mentioned cameras.

There is a play back button, the marks is the same as the play button of a Video player

hi please see your camera's screen and press the play button to view your saved pictures. if you do not like the picture, you can press the bin button that should be near to the bottom right hand side of the screen. it will ask you to confirm to delete the picture. alternatively, you can take the SD card out of the camera and use a card reader and plug it in the computer and delete pictures from the folder as you would for normal files.

■ If the memory card is inserted in the camera, all the camera functions apply only
to the memory card.
■ If the memory card is not inserted in the camera, all the camera functions apply
only to the internal memory.
■ If you have turned on the camera by pressing the POWER button, you can press
the PLAY MODE button once to switch to Play mode and press it again to switch
to Recording mode.
■ You can turn the power on with the play mode button. The camera is turned on in
play mode. Press the play mode button again and the camera will be turned off.
■ You can set up the PLAY mode function by using the camera buttons and LCD
monitor.
2. The last image stored on the memory is
displayed on the LCD monitor.
● Playing back a still image
1. Select the PLAY mode by pressing the
play mode button ( ).
100-0007
3. Select an image that you want to play back
by pressing the LEFT / RIGHT button.
※ Press and hold the Left or Right button to
fast forward the images played.

AND here is the manual in free downloadable form

http://www.fixyourownprinter.com/forums/inkjet/24191

Sounds like your computer or the software program you're using to download your pics is set to automatically erase the card after the download.

change the joy stick butten

Hey hpnotiq_babe,
Directions on how to set the self timer on this camera are on page 27 of your camera manual. I have included a link to a PDF download of your camera manual in case you need it. I have copied the instructions on how to set the self timer on your camera below. I hope this helps!

● Selecting the self-timer
1. Rotate the MODE DIAL to select a RECORDING
mode with the exception of VOICE RECORDING
mode.
2. Press the SELF-TIMER button until the desired
mode indicator displays on the LCD monitor.
A 10 second, 2 second or double self-timer icon
appears on the LCD monitor. In Movie Clip mode,
only the 10-second self-timer will work.
•2SEC self-timer ( )
: Pressing the shutter button will allow an
interval of 2 seconds before the image is
taken.
•10SEC self-timer ( )
: Pressing the shutter button will allow an
interval of 10 seconds before the image is taken.
•Double self-timer ( )
: A picture will be taken after about 10 seconds and 2 seconds later a
second picture will be taken. When using the flash, the 2-second self-timer
may be delayed for longer than 2 seconds depending on the flash charge
time.
3. When you press the SHUTTER button, the picture will be taken after the
specified time has elapsed.

http://www.samsungcamera.com/customer/cus_main.asp?cat_uid=11

Sincerely,
Allan
Go Ahead. Use Us.

Once you took pictures without a memory card, all pictures taken will automatically be saved on the INTERNAL MEMORY of the camera.
When taking pictures with a memory card, all pictures are just saved on the memory card itself.
If you are seeing 100-757 on the LCD screen. It means that there are already 757 pictures taken from the first time you've used the camera.
It is possible that some of the pictures are in the internal memory and some are in the memory card.

STEPS to DOUBLE CHECK:
1) Remove memory card out of the camera
- Turn on camera
- View pictures on the internal memory
by just pressing on the PLAY mode button
(lowest of the 3 little buttons)
- Pictures seen are just the ones saved on the internal memory

2) Return memory card back in the camera
- Turn on camera
- View pictures on the internal memory
by just pressing on the PLAY mode button (
lowest of the 3 little buttons)
- Pictures seen are just the ones saved on the memory card itself

*** If you want to transfer pictures on the internal memory of the camera to your MEMORY CARD, you just have to follow the steps below:
- Make sure there is a memory card inside the camera
- Turn on camera
- Press on PLAY mode button to view pictures
- Press MENU/OK button
- Keep scrolling to the right until you see COPY TO CARD
- Select YES using the arrow keys
- Press MENU/OK to confirm
* When you've done these steps, all pictures from the INTERNAL MEMORY of the camera will be copied to your MEMORY CARD but it depends on the space left on your memory card

** If still, you could not view the pictures, it's possible that the pictures are really gone when you have transferred the previous pictures to your computer.

** Once you have transferred pictures to your PC, and you have deleted those on your camera, the FILE NAME of the pictures will not start from 100-001 again unless you have reset the file name on the settings of your camera.

In example, i already have 256 pictures on my camera so the filename reads 100-256 for the last picture taken. And then i decided to transfer those 256 pictures to my PC and i deleted those immediately after being transferred. So, as i took another picture, FILENAME will start with 100-257 if i have not reset
the FILE NAME settings to 100-001.

Hope i've helped you enough.

Obviously a faulty button switch, your camera will need to be taken aprt by a proffessional repairer to solve this one, it will require a complete membrane swaitch assembly comprising all buttons, as they come in one unit. will possibly cost more than the value of the camera