Make sure that you have the camera in Auto mode.
The icon of a camera on the mode dial is the Auto position.
Check the ISO setting and make sure it is set to Auto.
Make sure that your fingers are not blocking any of the small holes on the front of the camera.
Make sure the battery is fully charged.
The camera flash will not illuminate a whole room, but should do fine if you are within 12 feet of the subject.
If you are taking photos through a glass window, put the front of the lens in contact with the glass to keep the flash from bouncing back into the lens.
If the above does not solve the problem, it is time to contact Sony repair.
I recently purchased the Sony P200 and I'm having the hardest time figuring out how to take good, consistent shots in low light. My wife and I just had twins and the boys are still in the hospital, so I'm taking shots in a very dimly lit NICU. I have the AF illuminator turned on, with a flash, and half the time the pictures come out completely dark, other times I notice the flash is considerably "bigger" and then I either get a completely white screen, or sometimes the shots are good. Bottom line is the shot are very inconsistent, with the majority of them being completely black. Can someone help me figure this out? I know it must be something I'm doing because both my mom and sister aren't having any difficulties with their cameras.