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Problems X1550 on Vista
My PC has an onboard video card (IGP9100) and a X1550 AGP. I only want to use the X1550 for a single monitor. It used to work fine under XP, but stopped when I installed Vista. With a bit of investigation, I think I'm suffering from the WDDM vs. XPDM incompatibility issue, and it causes an error 43 and doesnt load the display adapter driver. I have tried telling the BIOS to boot the AGP display driver first (I dont seem to be able to switch off the on-board display adapter), and loaded very latest drivers and Vista SP1 etc. But I simply cannot get the display driver to load, and simply end up running in VGAsave mode, with none of the features or power of the video card available.
Does anyone have any suggestions?
Thanks
Andrew
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