Hi Guys, I have had a search online and on here for help with this but have been unable to find anything so I am hoping you can help. I have a 27" iMac from mid2010. Currently running Lion (10.7.5) with a ATI Radeon HD 5670 Graphic Card. I also have a 22" HP monitor (HP w2207h) which I use as an external display. This is connected via and HDMI cable using a Griffn adaptor. It is connected and working but the image is not perfect and whatever setting I put it on it either does not work at all or looks wrong. I currently have it on 1080p (50 Hertz). The screen itself says its recommend settings are 1680x1050 - 60Hertz. Sadly this option is not on the display settings on my Mac. Is there a way I can download drivers for this so I can get it looking nice or if not any tips to get it less vomit inducing? Thanks in advance!