please help with n73!!!!!!!!!!

i've been using n73 for 2 months. everything is fine till today when i try to take pic for my class the camera doesn't ( the one in the back of the phone ). When u slight down there will be a picture for u to take but when i did it there was nothing on the screen but it still show the feature like scene mode, flash mode,self timer...etc. It just the original screen when u don't the camera. The camera in front still working good. Please help me cuz this phone is really cool and i have no money to get another one hic..hic...hicc

Seems this is a problem child. view this thread for more info: Nokia N73 camera problem