[requiem]

Hey Dude! I figured you might have set the wrong video settings. Since your graphics card has only 32MB, you cannot have both 32bit colour and High Detail settings. Having the latest version of DirectX also helps.
Also try reading the Readme file, there are tons of information in there which will help you out.

If all else fails, you might want to consider getting a new graphics card, preferably one with a 64MB memory.