Techwood 32722hd TV - unwanted red cast over screen

[hellodarren1]

Hi. I just got a Techwood 32722hd TV second-hand and am having a problem with the screen, it seems to have a red cast over it. Here's a photo to show what I mean which includes the settings from the menu screen.

http://img263.imageshack.us/img263/9827/img0644g.jpg

I can't seem to figure out how to normalise the colours. Any help appreciated.