Direct3D Initialization Error D3DERR_NOTAVAILABLE

Hi, thanks in advance for your help. I got a game yesterday and installed it on my computer, it worked fine. But the next day when I try to run it, I keep getting the following error: Direct3D Initialization Error D3DERR_NOTAVAILABLE. Not sure what changed between those two run times, but I didn’t do anything specifically. I was wondering if someone could point me in the right direction as to how I could resolve this. Thanks.

Did you change/upgrade the display/graphics drivers? If yes, revert back to the ones you were using before .. If no, then go to the venors site and update them … The error basically says that Direct 3D does not support the device

It is absolutely safe to download DirectX (the newest version is 9.0c).
Get it here:

http://www.microsoft.com/downloads/details.aspx?FamilyId=9226A611-62FE-4F61-ABA1-914185249413&displaylang=en

Then you just execute the setup, it will do a clean reinstall. If you want to make sure you can create a system restore point before installation, although I have never heard of a DirectX installation messing up Windows.