Auto-range meter w Scale.MarkerVals[]

Hi. I am building a simple program but cannot figure it out.
I have a meter with auto-range that can be adjusted automatically as I adjusted the knob.
Also I have a colour limits that can be seen on the meter. The reason I used colour limits is because the operator 
can adjust the knob without eye strains. 
Here's an attached.
Note:- Auto range and scale.markervals[] cannot used together otherwise the meter cannot be read.
Pls save it as version 7 so that I can open it without delay.
Cheers
Clement 
Attachments:
autorange_markcolours.vi ‏37 KB

With one property, you're setting scale.maximum and with the other, you're setting what the markers should be. Setting the last marker to 50 is the same as setting the scale.maximum and since they are two different values, you see the dial bouncing around. Instead of wiring a constant to the last marker, wire it to the same point where you calculate the scale max.

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