I run an AGP card, which normally requires the hotfix version of the driver. There was no such thing though for 9.5. So to my surprise, I was able to edit the .inf for my card and I installed through the device manager.
I thought games were going to crash because the hotfix fixes DirectX issues with AGP, but I fired up H.A.W.X which is a D10 game and it played perfectly.
If you post hardware id for your card, I can edit the .inf for you so you can install the latest driver though the device manager like I did.
Right click the video card in device manager, choose properties, then details tab. Change the properties drop down to hardware ids. Copy the top value and post it here.
Edit: I just looked in the .inf and there are no mentions of your 3670...so I can definitely help with this.