WHEN I PUSH THE POWER BUTTON THE LENS OPENS AND EXTENDS OUT THEN INSTANTLY RETRACTS I HAVE PUT 3 SETS OF NEW BATTERIES AND THE SAME HAPPENS I JUST USED IT ABOUT 2 MINUTES PRYER TO THIS PROBLEM

What type of the battery do you use for you camera? Was your problem as low power warning for full charged new batteries? It maybe helpful, good luck for using Li-ion Kodak EasyShare battery

Have you made sure that the batteries are LiIon and fully charged? I had a similar problem with a Kodak Easyshare camera that required the higher voltage LiIon battery pack rather than alkaline AAs which will fit in there but is not exactly right.

1. Clean the battery contacts. a. Remove the battery/batteries and the memory card from your camera, then wipe the battery contacts with a soft, clean cloth. b. Reinstall the battery/batteries into your camera. Please make sure that you are installing a fresh/ fully charged battery c. Turn the camera on. 2. Without the memory card, turn your camera on. (If it works then it?s your memory card that is faulty) 3. Please test with the a different battery If you do not have access to another battery Try these steps instead: Please take the battery out of the camera. b. Insert the charger into the unit from the main socket and turn the camera on. If the camera works you will need to replace the battery. If you camera doesn?t switch on you will need to order a no power repair with KODAK or a new cable.

You may try resetting the Camera to the original factory settings.
If the issue persists then service will be required.

I have the exact same problem and also do not know how to fix it. Were you able to fix the problem? If so I woulsbe keen to know how you fixed it.

appears to be power issue in the camera but you can try the lithium AA batteries that are located in the photo section of your stores... they are more powerful than regular AA batteries or else send to repair shop

Hi
Had the same problem a few months ago.There was a high pitchedwhisltle and I think the screen said "lens fault.turn off camera" or something similar.Bought a G9 to replace as the 7 was out of guarantee but sent the 9 back to the e-bay reseller as it was obviously secondhand with grit around the lens ring and the viewfinder.Ebay never again!.So 3 months ago ago I tried the G7 again with a fresh charged battery before I consigned the camera to the loft.I noticed that each time i switched on the whistle and message was there but the lens extended slightly further each timeso I kept rebooting until the lens was fully extended.Turned the camera off and on again and everything was back to normal.It seems that this may be Canons protocol when a camera goes back.Its been absolutely fine until today.It wont boot up at all.I have tried 2 fresh charged batteries and its dead.Any ideas anyone?

I am having the same problem with my camera. I have to take the batteries out to get it to shut down. I also cannot view my photos on the camera, when I try to turn it to view, it goes to shoot mode.

Hitting camera on desk once has partial fix.
When camera's batteries taken out & then put back in and the power on button pressed to switch camera on, the lens extends out & the camera now works.
BUT when the power button pressed to switch camera off the lens retracts AND a "Lens Error" msg appears on the LCD screen.
Just have to take batteries out to remove msg & start again as above but WITHOUT hitting the camera.
Thanks

no u can't do that stupids never take out tha card now u messesd up big time sorry