I have been trying to update my LCD so that it uses the 480 x 272 measurements. However, the code that I am using here http://www.ghielectronics.com/downloads/FEZ/Cobra/Broch_FEZ_4_3inTFTDisplayKit.pdf, is not changing the LCD settings. I have been asking about this on a previous thread and a suggestion was that I may have to do a firmware downgrade from 4.2 to 4.1 as the code may not work on the 4,2. I am having some issues with downgrading the SDK, so I was wondering if the code is the issue that if there is another code out there for V4,2. Thanks.
go back to the other thread ! 
Seriously, go back to the other thread and keep talking there.