Carl, how does VPT work with XP? I don't see anything happening; perhaps the Dos Box has to be customized in some way? Also XP Dos boxes seem to have some ability of their own to produce custom colors via the properties tab.Rather than my personal ;PR; color settings, what you should start with is the generic monochrome display settings; i.e., MONO.DSP, which is part of the basic Xy4 installation. The command is LOAD MONO.DSP.