While using DR 2011 (In Vault Pro or stand alone) many of our prints turn out way too light. We view with black background white foreground, and print using the B/W settings but the results still appear to be grayscale. This is constant with both XP and Win 7 HP drivers for Hpvmv PCL5 and 5200 PCL5 and going to 11X17. All plots seem light in areas, but some are worse than others. I've included both a DWF and DWG