Whenever I turn it on

This tip was fantastic. It worked like a charm. I did exactly as instructed and my camera with the same blue screen problem is now fixed.

Thanks...

It took me a while to figure this one out but I finally did and mine is back to working perfectly. The problem: The Play option worked fine but the camera did not. When turned to camera mode the blue canon screen would come up and then freeze. The only way to turn it off was to remove the battery.

The fix: I was brave enough to take the entire outer shell off the camera. On the main board, underneath the screen/battery side, all the different parts are connected together. There is a single connector from the lens that had come out of its port. The ribbon connector must have somehow been shaken out of the port at some point. With needle nose pliers I carefully fit the ribbon connector back into the port. I carefully reattached the outer shell and everything was back working!

I will warn you that this task takes some time due to many many screws. It's a lot better than sending it off for hundreds of dollars though.

Glad I found this!
I just sent my Elura 90 in to Canon for this exact problem and they're estimate to fix it is $161.40. At least they do estimates and return shipping free. When I get it back I'm going to try this. Thanks!

Ok I just finished this. I followed KC's advice and I did solve the problem but let me give you some warnings. This took me about an hour and 20 min to figure out. I would not try this again without having plenty of time set aside without interruptions. Luckily the tools I started with were enough. I used a tiny screwdriver with a free spinning end and a magnetized tweezer. I found out the magnetized part was really helpful when I was putting the whole thing back together. I kept the screws separated based on which side or part they came out of and surprisingly I used them all up at the end. There are a lot of screws and it wasn't really clear to me where to start and some of them are on the inside. One is near the lens under a tiny plastic flap that I picked off with the tweezer. Also the shell didn't come apart that easily and I got really scared that I was going to break it or not be able to get it back together but actually putting it back together was way easier than taking it apart. When I finally got the battery/ screen section off a connector to the battery came loose and I had to reattach it before putting it back together. Check your power before putting everything back. The connector that caused the problem was the first orange on the left. I think there were 3 total going accross the top. It was only a tiny bit loose and I just pushed it back in with the tweezers. Now my camera works perfectly! Thanks for the help KC!