Sony Cyber-shot 7.2mega pixels

Press the PLAYBACK button that is located above the Display at the right side and left to the Zoom buttons.

Once you press the PLAYBACK button, the Camera goes in to the Playback mode. Now you can use left and right arrow buttons to view the images.

To playback the movies it is required to press the center button.

Skip using the camera for downloading and use a card reader instead. A lot of troubles will be eliminated.
A card reader is not expensive.
A card reader can be found in most electronic stores or on a site such as Ebay.

the only thing i can think of is the sensor being misconnected or kaput. are you viewing them on the camera screen or a pc? it could also be camara screen...

keep iso 100 and set ur screen brightness

Please check the image size (pixels x pixels) setting or the resolution (MP). Seems like the camera is shooting in low resolution. Have you used this memory card on a mobile phone or another camera? Format the memory card and try again.

Try to right click on the image files while they are read on the memory card or on the camera hard-wired to your computer. Click on copy then click on your desktop of your computer to paste them. They may just be creating short-cuts rather than placing the file onto your computer.

set resolution lower. piels set to high.

Picture Pixels are related to CCD Imager and data processing circuits in camera.
Want more picture pixels, buy new model camera having more pixels capability.

u need to set ur cam in the factory defaults^^

Your camera needs Lens replacement.