Am not sure whether the Pro version of XP suffers from it as well but there's a known issue with the initial graphics card driver in XP. Hitherto, previous versions of Windows would initially install with a basic VGA 800X600 screen. However, with XP, a Microsoft default full-screen graphics driver is automatically installed and this is one designed for VGA operation only. In some cases, this will switch the graphics card's output permanently to VGA mode and prevent the use of digital mode. Hence, a black screen.
Obviously, I don't know the details of your monitor/graphics card setup but if this is what you're experiencing, then the way around the problem is to initially connect the card to the monitor in VGA mode (so as to allow something to be displayed), then go to the driver of the graphics card in Device Manager and use 'Update Driver'. You'd update with a known good driver for your graphics card, which you'd previously installed into an appropriate folder, pointing the update process to the location of that new driver. Then reboot with the appropriate video cable/connection.
Edited by packman (07/25/07 01:10 PM)