Display on external monitor is plagued with red dots and horizontal lines, this only occurs with certain resolutions (particularly high resolutions). I have a late 2010 revision of the Macbook Air ultimate 13inch, using a Griffin mini-display to DVI/HDMI (i have tried both HDMI and DVI), display is an ASUS 24inch (have also tried a dell 23inch, to the same problem). I would really like to be able to use this display with my Air but the red flickering is annoying to view.