Matrox decided to release many Beta Drivers on the 24th of December Warp2search reports. They are for the following cards: G200, G400, G450 and G550 beta drivers for Windows 98,ME,2000 and XP
Notes: Beta drivers are not supported by Matrox Graphics Technical Support. Support for Linux drivers will only be available through our user-to-user Matrox Tech Support Forum. In cases here "available with OS" is stated, the operating system will install a Matrox driver that will give you basic 2D and 3D functionality, where this driver is supported by Microsoft.
Download: Matrox Beta Drivers for your card