DirectX 8.1 SDK D3D example problems

I had DX8.1 which I downloaded and followed the install procedure setup on another machine. I have since made a copy of the folder and put it on a new machine. Most of things I have tried doing in DX8.1 have worked fine. However I am having a problem with the programs in the Samples/Multimedia/Direct3D/ directory. A few work such as the Text3D example, however on pretty much the rest of the demos I get the following error from a window popup. PopUp1 Could not load the required media, Switching to the reference rasterizer, a software device that implements the entire Direct3D feature set, but runs very slowly. Once I click Okay on this I get another error, PopUp2 Warning, nothing will be rendered. The reference rendering device was selected but your computer only has a reduced functionality device installed. Install the DirectX SDK to get the full reference device. Now I''m presuming that I should install it on the new machine by running the SDKDev/debug/dxdevrtm program. I am guessing this will sort out the second error but what about the first error? I am using WIN XP on a AMD2200 with a NVidia GeForce 4 Ti4400 card. The system is all very new and should unless I don''t have the card, or DX setup properly run these examples. Anyone any ideas here? Thanks, Paul.