Ok, so I had a whole mess of problems lately with my video card. It was causing me to get BSOD so I went out and got a new one. The old card was a Radeon 9800 Pro, the new one is a Radeon HD 2400.
Now I was kinda dumb when I was trying to figure out what my original problem was and deleted DirectX from my system (I have XP btw). That caused a whole new nightmare trying to reinstall it, which I won't get into here - suffice it to say that I tried installing it every which way and got errors every time. Someone finally suggested the very simple solution to use a system restore and it actually seems to have worked. Dxdiag confirms that I have 9.0c installed again.
However, when I try to play Warcraft 3 now the screen flashes black a few times as it loads the game, then I get that awful error message saying "Warcraft 3 could not initialize DirectX." The drivers for my new vid card are properly installed. So I hopped back to Dxdiag and ran some tests. DirectDraw works fine, but Direct3D utterly fails. Each screen test results in the error "Direct3D test results: Failure at step 8 (Creating 3D Device)." I don't know what to do now. Does my new video card have incompatibility issues, or is there just a problem with DirectX?
I should also mention that under files Dxdiag has these notes:
-The file directx.cpl is an old version, which could cause problems.
-Several files (d3dx8d.dll, d3dx9d.dll, d3d9d.dll) are debug versions, which will run slower than the retail version.
-You should reinstall DirectX to get the latest version.
I've tried to update DirectX with the latest 9.0c package and these messages are still there. I don't think it's related to the problem, but at this point I'm pretty lost.