Taking photos or video works sometimes

Please contact your nearest Nikon Dealer the connectors of the Screen at the back are loose / happens sometimes, as far as we had the Problems (owners of Photo chain stores) Nikon always regarded is as a Guarantee Replacement.

Cost of repair would be probably more than the camera is now worth. But is the screen just showing black? An issue with the tiny SD10/20/30/40... cameras (IXUS versions also) was that sometimes a little corrosion could form on the A/V plug switch that would in effect simulate the plug being inserted, thus turning off the screen. If you have your television video plug available, try inserting and removing the plug in its A/V port a few times. If this is the problem with your camera, sometimes this helps remove that corrosion, setting things right again.

did you try pressing the DISP button @ bottom right just next to screen near the menu button?

If it is a lcd screen, the screen is taking a dump on you

Mybe it's the memory card problem. my memory card became unusable, then i had to get a new one and then the pictrues were taken again.

Try this, it may or may not work. Insert the Video cable plug in and out of its slot a few times. The cable when inserted turns the screen off. But sometimes corrosion can build up on the internal plug switch, also causing the screen to turn off. Inserting and removing the cable a few times can sometimes knowck off this corrosion.

there is someting loose inside the computer so you may have to open it and check for loose conections or pices that they may be loose or video conectors

This is CCD problem that Canon know about Get onto customer support- a possible replacement camera is on the cards.

Mine is doing the exact same thing! have you found a fix yet?

My Sansa has a similar problem. Sometimes when the Sansa turns on (after the Sandisk logo) the screen will either turn black, blue, or black and white stripes. The player still works, but it is hard to navigate without the screen, obviously. What I end up doing is letting the backlight turn off and then pressing any button. Sometimes when the screen comes back, the display is allright again. But sometimes it takes more than a few tries. Turning it off and on again seems to work a little better, but it is more time consuming.