I purchased my 15" MB pro in October 2009, the first unibody pros that were released. In the past few months I've had some problems and wanted to know if anybody else has had them/what the issue could be. I had 2 kernel errors within 15 minutes approx two months ago and soon after Mac OS became sluggish. Accompanying the sluggishness is some annoying web browsing problems: 1. embedded videos won't load regularly causing the tab to crash or the browser on the whole 2. even if the video loads there is choppiness 3. almost every time i open nytimes.com my browser freezes when opening the mid-page video window On top of all of that I get occasional screen flickers (no full on black screen though). Anybody else have problems like this? Could it be a video card issue or firmware?