Try the DirectX Diagnostic tool (type in "dxdiag" (without quotes) in the run command under the start menu). I'm not sure if it is in Windows ME or if it gives you the information you need, but it is worth a try. It should say it on the first page.
Or download Everest. Whatever floats your boat.
(I just made a post almost identical to this one just a second ago... That's kind of creepy.