I have been using Aperture for my photos of which I always shoot RAW but have a few questions. 1. I have alaways wondered why when importing them the thumbnails look bright and vibrant but then quickly change to a more dull tone? 2. Also, how do people post process their RAW images? I only tend to make changes if I am not happy with exposure, WB, cropping etc. Although I do sometimes up the black point. Using the sharpness and noise reduction sliders dont seem to make any difference.