My new oscilloscope is throwing me for a loop. When I measure a steady DC signal, the level changes when I change the volts/div. The software and graticle measurements both change to reflect the same results when I change volts/div. It seems to me, irrespective of the volt/div setting the voltage should always be the same. Probes are stock rigol probes that came with scope. Probes are selected 10x. I should say all measurements have been done on channel 2 and haven't tried channel 1. I have given the scope a self calibrate but results are the same. Thank you in advance.