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[English] PDREADME.TXT MATROX GRAPHICS INC. 2001.01.18 Matrox PowerDesk for Windows 2000 Revision 5.32.010 Contents ======== - Description of this release - Installation - More information - Notes, problems, and limitations Description of this release =========================== Matrox PowerDesk software includes a display driver and display utilities. With this software, you can take full advantage of your Matrox graphics hardware and you can access additional Matrox display-related features. Installation ============ To install Matrox PowerDesk, start the "setup" program included with it, then follow the on-screen instructions. The setup program will only install software if a Matrox graphics card model supported by the setup program is installed in your computer. More information ================ For more information on Matrox PowerDesk, see the help file included with it. For information specific to your Matrox graphics card, see your Matrox or system manual. Notes, problems, and limitations ================================ - DirectDraw, Direct3D and DirectVideo support The DirectDraw driver we provide is compatible with DirectX 2 (or later) and includes Direct3D support. For our DirectDraw/Direct3D driver to be called, and benefit from hardware acceleration, Microsoft DirectX 2 (or later) MUST be installed, even for programs originally made for DirectX 1. Also, if a recent version of DirectX isn't installed, some Matrox PowerDesk features may not be available. We provide DirectX on the Matrox CD-ROM. The latest DirectX is available from the Microsoft Web site, and is included with many DirectX programs. IMPORTANT: If the DirectX setup program prompts you to replace the existing display drivers, click "No". Otherwise, the setup program installs display drivers which are not as optimized as the Matrox drivers and which do not support PowerDesk software. Note that depending on the origin of your Microsoft DirectX software, it may not include DirectVideo support. For faster playback of Indeo and Cinepak AVI files, you should install Microsoft DirectVideo support. - Matrox bus mastering This driver supports bus mastering. Bus mastering is a feature that allows expansion cards to perform tasks at the same time as your computer's CPU. If you have a fast Pentium computer (faster than 166 MHz), the display performance of most programs is improved when bus mastering is used. To use bus mastering with 3D (Direct3D/OpenGL) programs, your graphics card needs an interrupt request (IRQ). Most computers automatically assign an IRQ to graphics cards, but some do not. If your graphics card hasn't been assigned an IRQ, programs that use Matrox bus mastering may not work properly. For more information, see your Matrox or system manual. - DirectDraw and Automatic Power Management As stated in "Microsoft DirectX Release Notes", September 30,