Olympus C8080 Camera

Question

I received my camera for Christmas 2004.  In July 2007 suddenly nothing happened when I push the shutter button.  It depresses but does not take a picture nor does it give the settings on my screen.  I may have inadvertently presssed one of the buttons on the left side of the camera but can't find my manual to check that out.  A person very knowlegeable in cameras looked at it for me but was unable to find a solution.  The top line of the viewscreen says " P 1/2 F2.4 00"  The "1/2" shifts to other fractions as I move the camera around.  On manual setting instead of "00" at the end of the string it says "-3.0" in red letters.  The second line from the bottom says "[CF] and the bottom line "HQ 3264X2448 497"