My camera will power on for a second and the lens will come out then goes back in and shuts off..

Here's what worked for me (eventually):

1. Tried the cleaining to no avail.
2. Made sure the charger was Ok - it was
3. Tried a new battery in camera shop that had been charged for 15 mins (I know it's not long but it shoudl at least open) - didn't work.
4. Cleared off the memory card (there was a 0 byte JPG on there) but still didn't work. You can't see the internal memory via USB it seems until you can get into the menu so couldn't clear that.
5. Performed the firmware upgrade as on other posts - http://www.kodak.com/global/mul/service/downloads/DownloadLookup.jhtml?pq-path=11647/11660&product=EKN033563 - still didn't work.
6. Bought a new battery and charged it - didn't work straight away.
7. I put the camera back on charge, then removed the battery etc. and had to try opening it several times before it finally started up. As soon as I got into the menu I reformatted both the internal memory and the memory card and now it all seems fine!

IS you camera model V1233? if yes make sure your using the Li-Ion Klick 7004., Now if your using this battery clean the 3 metal contacts of the battery then if its done, Charged the battery for 3hrs if this solution will not solve the problem you need to call kodak to send your camera for repair toll free 1 800 235 6325 ext 12.

most of the time cleaning the battery and charging it will solve the issue