When I import my photos and look at each one for the first time it looks fine for about half a second then change. For instance, If I set my camera for black and white, the photo will be black and white on my computer for about half a second then change to color. This happens to all my photos that I may have set the presets for contrast, saturation and sharpness. How do I stop lightroom 4 from stripping these camera presets?
What you are seeing he is completely normal for raw images. Lightroom does not read in-camera adjustments such as saturation, picture styles, black and white, etc. For raw images. All those adjustments have to be made using Lightroom. If you want a black and white image straight from the camera using Lightroom, then you'll have to shoot it in JPEG mode.