Can you post an image from automatic mode? Keith may be right and it needs repaired, however the manual mode issue sounds correct and not broken.
A WELL lit room is not WELL lit to a camera. you'd need to be somewhere around ISO 6400 and a shutter of 1/125, aperture of 2.8 to get exposure in an average lit room.
I need to be able to read the FULL exif data from the image-not just the settings that the camera chose but all other things dialed into it that you may not realize are there.
You can post it to a flickr account or email it to me at info@clakesports.com