Wont take pics, flashes orange and green light when i try. olympus D-520

Ok. So, I've had this happen several times before. I was once able to make it work anyway and it usually seemed to fix itself after so I figured there was no point in getting help. Now, however, the camera (Olympus Camedia D-520 zoom) won't let me turn on the screen display or even take pictures with the lens open. When I turn on the screen so I can see what the picture will look like, the green and orange lights right next to the part you put your eye at turn on and the camera pretty much shuts off. This happens when I try to do anything with the lens open. I used to be able to take pictures without the screen on, but now the camera is useless except for loading stuff to the computer. The frequency of this happening has led me to believe that this problem is common, yet it seems that nobody has ever posted the problem or a possible solution. And to top it all off I've gone and lost my manual. If somebody could please tell me what is going on or, more importantly, how to FIX it, please say something.