Matrox have released a new technical support tweak utility. Dated April 19, 2002.
For G550 (AGP), G450 (AGP), G400 (AGP) and G200 (AGP and PCI) graphics cards only. Revision 4.04.009 | 828 KByte.
Download Matrox Technical Support Tweak Utility
Download Matrox Technical Support Tweak Utility