I've got one of the new Macbook Pros (late 2008). I have noticed some pretty bad video tearing while watching Netflix Watch Instantly, which uses Silverlight (Microsoft's answer to Flash). I have no tearing with Flash. (The effect is similar to the tearing seen when scrolling using the scroll bar--this happens when you click and hold the scroll bar, say, in Safari or Mail and drag it up and down. It does not happen when two-finger scrolling with the trackpad. Strange...) Now, my friend's iMac (with ATI) graphics has no tearing with Netflix/Silverlight. Therefore, I have concluded that this is an issue with NVIDIA and Silverlight. Has anyone else with a new Macbook/Pro (with the NVIDIA GPU) noticed this tearing issue with Silverlight media, especially Netflix Watch Instantly? If so, I'd like to get this some publicity in the hope of getting a fix.