When rendering certain web pages, or performing certain filters in Photoshop the computer emits a high pitched noise that sounds like it is coming from the upper left hand corner of the base of the computer. I guess this is the video card. I'm also assuming this is not normal. In particular I know for sure it does it durring the Alienskin Eyecandy 4000 plug "Fire". Is this something I should be talking to Apple about? I can't imagine what would cause something to resonate (or for that matter what would be resonating at all). Maybe the speakers are getting some high grade interference from the video card?