OK… So this only works for MY problem and I really grabbed the answer from a forum, but here’s my detailed version:

The problem:
In Portland two Thursdays ago, I was taking photos of Reliquary’s set. I didn’t drop the camera, get it wet, or do anything else that would make me assume it would stop working, regardless, it stopped working properly. I could get into the pictures to view them, but in camera or video mode, it just showed a black screen with the message, “Turn the power off and on again”. I suspect the cause was my turning the camera off an on a lot because the problem is the lens cover sticking closed. I believe I wore out the lens cover motor.

The Solution:
(DISCLAIMER: Proceed at your own risk! If you do this and break your camera or anything else bad happens, don’t cry to me.)
1. Remove the batteries and memory card.
2. Remove the two screws in the battery compartment. (see image 1)
3. Remove the two screws on the bottom of the camera. (see image 2)
4. Set the screws aside and label them. (see image 3)
5. Open up the camera. (see image 4)
6. Pull the two pieces out of the front camera piece. Be careful for attached wires, but I got mine open without disconnecting anything.
7. Force the lens cover open by turning the larger black gear clockwise. This took some force on my part, so don’t be afraid to push hard, but be careful of all the exposed components (like the nearby lens). (see image 5).
8. Put it all back together in the reverse order from how you took it apart.

Sorry about the blurry images. With my camera not working, I had to use my camera phone.