I have 2 10d's , and i noticed something. With one of mine, the exposure meter in the view finder, there is one bar that shows you where your at, if you know what i mean. The second 10d sometimes shows two bars..

Does someone get what i mean? did canon change something??

I don't have a 10D any more, so I can't check this, but it sounds like you have exposure compensation set.

One camera is set to 1/2 stop, another one to 1/3 stop steps, if you know what I mean.

oh ok, i dont really know the difference jyrgen, is one better than the other?

No... In the custom function (CF..) setting the first one is set to 1/2 steps and the other one is set to 1/3 steps.

Custom Function 6 infact.

Setting 0: Gives 1/2 step stops
Setting 1: Gives 1/3 step stops

The one with 2 bars is set to 1/3 step