I've managed to install the CMC 1.0.4210 with no problems (Thanks MrDave), but am still using the Cat 8.5 Theater Driver. Has anyone tried using the new Cat 8.11 on a 650 PCI? I'd love to upgrade, but a bad driver install means a complete software un-install/re-install on my system. Vista 32, HD3850, Visiontek 650 PCI.