Newbie Q: Noise (in Oly C-8080)???

I've seen complaints about excessive noise in what is being taken with Oly C-8080. Having just purchased a c-8080 as my first venture into anything other than point-and-shoot land picture-taking -- I won't even dain to refer to it as photography -- I was concerned by these complaints.

What is this noise that's being referred to? How bad is it? Would it justify exchanging the camera for a C-5060 (and incurring the 10% restocking fee on camera and all camera-specific accessories)?

Much obliged for any info.

Ken