You may even have a setting on the camera itself to lower saturation levels.
Possibly... You had a Fuji in the past so you should know what I'm on about here - right now I'm using F-Chrome colour settings which I believe increases saturation and generally gives you brighter, more vibrant photos, right? Would using F-Standard work out better for most of time?
I'll have to do some experimenting with the two and see if there is actually a big difference.