I have been getting buffer overload indications since installing SP1 on February 23, 2011. I experience it listening to videos on various news websites and to podcasts in iTunes. Here is what happens: - the pointer freezes, - a lound audio feedback signal is heard with very slow audio from the video in the background. - it sometimes clears itself in as early as 15 seconds,but often longer. - if it doesn't clear itself, holding down Crtl-Alt-Delete for about 5 seconds will clear it and take you to a menu screen. Just click the Cancel button to get back to normal. 1. Has anyone else experienced this after SP1 installation? 2. Does anyone know what buffers are involved and how to increase them?