Kaz, the Intel (E7205) Granite Bay chipset (which is used on your motherboard) has a known unfixable bug in its AGP controller. It cannot run at AGP8X speeds without problems, and is not AGP 3.0 compliant. Smartgart probably recognizes this and sets the card to PCI mode. You could probably manually set it to use AGP 4X with fast writes off and be fine.