[Saphire]

I got my 30D yesterday and been playing around. All the photo's I have taken are under exposed by about 1 stop is this normal. The saturation and everything else seems fine. I have put an example below.
The histogram on the camera is a little low but not as much is it the software that's not reading the files properly. I have tried all the following programs.
Canon digital professional, Adobe bridge, rawshooter won't take them in, Capture one pro is the worst of the lot I have to give +2 compensation to get a reasonable image. The histograms in all the software are lower that what is seen in the camera. Any ideas.

P.S
1. The first histogram is what it looks like in the camera
2. This is what the histogram looks like in most software