I have a mid 2010 MacBook Pro (10K549), 2.66ghz with a Geforce 330M graphic card running Mac OS X 10.6.8. Any external display I connect my Macbook to using the Mini Display Port does not display the screen on the set resolution. For example, if I connect my macbook to my 24" LG L246WP it cuts off a significant portion of the screen and shifts it over to the left. The monitor reads the incoming signal as 480i. If I switch around some settings, I can get it centred on the screen, but it becomes 4:3 aspect ratio with black bars on the side, although the rest of the desktop space is cut off (meaning, 1920x1200 is cropped to about 1024x1200 and my cursor disappears where there is remaining desktop space). Refer to the image below: I've tried using 3 different HDMI cables to connect to my monitor. All gave me the same problems. I've tried connecting the Macbook Pro to LCD TVs, and while I can get full screen resolution, it does not display the secondary desktop at 1080p on the TV. It is *not* a monitor issue because I've got this same LCD monitor connected to my Mac Pro and it works fine. I've got a 2010 Macbook, and it also works fine with my LG monitor. I've tried upgrading to OS Lion hoping it would fix it (maybe a graphics driver issue) but it still gave me the same problems. Basically, I can take a screen shot from the secondary display and it will give me a jpeg on my desktop thats 1920x1200, but on screen its cropped and moved and the monitor registers it 480i. Same goes for any other LCD Monitor or TV I've tried hooking this up to. Whats going on??? I have apple care 2013, is this something they can fix or give me the same Macbook pro but in proper working condition? I don't care to get a brand new laptop, I just want to hook up my external to my laptop! Please help!