I've a Kodak DX6340, recently noticed that some colors are not reproduced accurately. A deep blue/almost purple flower I was taking a close up of did not appear in the digital viewfinder to be the correct color, nor the finished image as displayed on my PC screen. It appears lighter than the real thing. I don't know if this is typical for this type of camera of if the sensor is aging? Camera is 4 yrs old and has been used quite a bit. Do the sensors degrade over time especially if exposed to bright sunlight? Thanks