If you run dxdiag (click Start | Run, type in dxdiag and hit Enter), does it report any problems? There are a couple of tests under the Display tab.
Have you tried the latest ATI drivers (or those from the laptop manufacturer, if any), if you don't need the Omega drivers for a different game?
You can try downloading and extracting these
configuration files into your '...\Divine Divinity\Run' folder. If the game is crashing before or during the creation of the files, perhaps it will be able to load if the default versions are already there. You can edit the config.div file in any text editor to change the resolution from the current 1024x768, and can also edit a line to skip the intro videos (see
here).
Are there any performance problems in the game with DirectDraw? Even though Direct3D should be better than DirectDraw, with your laptop being so much above the recommended specs for the game, practically there may not be any noticeable difference.
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