********************************************************************** * This is the method I used to 'change' my m3D into a PowerVR PCX2 * * (developer) card, in order to exploit the new beta drivers from * * VideoLogic. * * * * It is by no means a guaranteed method, and I strongly suggest * * you back up your Registry before attempting the procedure. * * * * Having said that, it worked first time on my system. * * * * G.C.Thompson, 30th December 1997 * ********************************************************************** --------------------------------------------------- Download the drivers and unzip into a new directory --------------------------------------------------- Doh. ---------------------------- Remove m3D from the Registry ---------------------------- Run regedit.exe, and open the key - HKEY_LOCAL_MACHINE\Enum\PCI You'll find half a dozen (or so) entries, in this kind of format - PCI | +- VEN_1033&DEV_0046 | | | +-BUS_00&DEV_13&FUNC_00 | +- VEN_1033&DEV_0046 | | | +-BUS_00&DEV_13&FUNC_00 | Select each BUS_... entry until you find the entry which shows a 'Device Desc "Matrox m3D"' in the right hand panel. Delete the VEN_... entry above it (you might want to Export it to a file before deleting it, using the Registry|Export Registry File menu option). Now open the key - HKEY_LOCAL_MACHINE\Software\Matrox In it, you'll find an m3D entry. Delete it (or Export then delete). ---------------------------------- Remove supporting files from Win95 ---------------------------------- Some of these are VideoLogic specific - don't worry if you can't find all of them. windows/system/vsgl.vxd windows/system/pvrsm3d.dll windows/system/pvrinit.exe windows/system/pvrhal32.dll windows/system/dplay.dll windows/sglmid5.dll windows/sgl.dll windows/pvros.dll windows/pvrmid5.dll windows/pcx2help.hlp windows/apoc3dx.bmp ------------------------------ Remove the m3D from the system ------------------------------ Open up the Sound, Video and Game Controllers entry in the Device Manager, select the Matrox m3D entry and click the Remove button. Edit your autoexec.bat file, and comment out the line at the bottom which runs the m3dpci program. Reboot the system for the change to take effect. When it detects the 'PCI Multimedia Device' ... -------------------------------------------------- Don't allow Win95 to install drivers automatically -------------------------------------------------- Windows will ask you for the drivers - tell it not to install anything. It'll probably complain and say you can't use the hardware until you install the drivers - surprise, surprise. -------------------------------------------------- Use the Add New Hardware Wizard to install drivers -------------------------------------------------- Run the wizard from the Control Panel, tell Windows not to search automatically. Select Sound, Video and Game Controllers and then use the Have Disk button, directing it to the new directory you unzipped the drivers into. Follow the installation prompts, and you should be done. Good luck !