Good grief people, read the instructions. In order to install this update you need either the HD2400 card or the HD2600 Pro, AND OSX ver. 10.5.2 or higher. If Software Update tells you that you don't need it, then you don't need it.
Pretty simple really.
Rich : Actually, that's the problem. I have the HD2600 Pro card according to System Profiler and I am running Leopard 10.5.2 and the update still won't install. I think this is where people are coming from. We meet the stated requirements BUT it still won't install. If there are other requirements and Apple published them, then we would all be able to see that we don't need the update. But as of now, some of us both meet all the requirements and can't get the update to install. That's why we're not chillin'! Sometimes it really isn't just stupidity, though you are right that it often is. We'll accept our apologies now.
Allan