As far as I'm aware, the Technical Help forum is for any technical questions, Jazz-related or not.

@Toni: I've never heard of this game before (and searching online didn't throw up anything useful), so I've got no specific advice for it. Some stuff that's generally worth trying is making sure your drivers are up to date, install any patches for the game, installing the latest version of DirectX, run the game in compatibility mode (right-click on the shortcut, Properties, Compatibility tab, experiment with different settings there). If it used to work and then has stopped recently, then uninstall any software/drivers you've installed recently and see if that fixes it.