For anybody that gets weird colours add the following to your /flash/config.ini file.
use_rgb_to_yuv=0
note: For anybody not familiar with editing the contents of the /flash partition. This partition is mounted read only. So you do need to ssh into the device and remount the /flash partition to make it writable. This can be done easily with the following command.
mount -o remount,rw /flash
after which you you can then edit the config.ini file
nano /flash/config.ini
then reboot. Colours should now be back to normal.