Finally managed to get MTW running on this card and have restored the AGP rate to 4x also. I've added some MTW specific info on this to the CTD thread in the apothecary.

The trick is to go to Device Manager, expand system devices, find "CPU to AGP Bridge", open up properties, click update driver and tell it you want to choose the driver and then install the "PCI Standard PCI-to-PCI Bridge" driver to replace it, then reboot when asked. It may slow performance, in fact I'm pretty sure it does, but at least it actually works now.



p.s. Before I did all of this I removed the graphics card driver first and then reinstalled it afterwards, just to be sure.