Hi, I would like to draw some attention to the mouse movement bug of Mac OS X. It affects only the users of high-precision / gaming mouses. I believe that most people don't notice it. Please check the video: (the link will open in a new window; not sure how to embed properly, sorry!) If you experience similar pointer behavior, please post your mouse product name and manufacturer, and OS X version you use. If your mouse is in the list below, please tell me: do you notice mouse behavior as described in the video? The list of affected mouses: Logitech G5 Logitech RX1000 Razer DeathAdder 3G Logitech G3 Logitech G9x Razer DeathAdder Razer Copperhead Razer Lachesis Razer Salmosa Saitek GM3200 Razer ProClick Logitech MX510 Logitech G500 I gather information on the bug in my blog: http://dae.cyberic.eu/blog/mouse-cursor-skipping-jumping-bug-on-mac-os-x I have already submitted it to Apple. Thanks for attention!