Hi, OK, so I installed Snow Leopard. Everything went well but I had one problem. I used DVI-HDMI cable to connect my Monitor. My monitor resolution is 1920x1200, and it doesn't have a DVI port. Only VGA and HDMI. Everything worked fine with Leopard, and I can see the 1920x1200 option listed in the System Prefs. But in SL, this option disappeared, instead they added 480p,720p,1080i, and 1080p. Is there any way I can force the system to display 1920x1200? Thanks.