Matrox have released new drivers version V1.01.00.080 for NT, Linux (Beta) and Win2K/XP downloadables. Notes and known issues: This is a fully supported driver release for Matrox Parhelia 128 MB boards only. Before downloading this driver, please read the release notes. This driver is Matrox-certified for AutoCAD® 2002, 3ds maxTM 4.2, 4.3 and SolidWorks® 2001+. The Matrox Reef demo will not work in conjunction with this driver (patch available soon). Please uninstall your current drivers using Microsoft Add/Remove Programs before installing the new drivers. Matrox Parhelia Drivers

And a new Tech support Tweak utility supporting the Parhelia is out HERE and the Release Notes are Here