Thanks guys for everything you've said. Yeah I know it wasn't like evil hate flames etc, more like tongue in cheek jab
Taking a look at the membranes inside the keyboard I can see it's possible I'll make a mess of it but I'm a firm believer in trying to fix any device before discarding it. Even a failed fix will result in knowledge to pass on in the future.
I think I can see at least one place where there may be an issue. Along the bottom right where the circuit follows the bottom of the membrane to the media buttons I can what appears to be a brown mark smeered between the lines. I'm guessing I need to clean that out and run the pen some distance to bridge where it's leaked. Well I've ordered a conductive pen and will spend some time here during the next few days to get my head round it. I've learnt a fair bit about keyboards in general already just looking through threads here.
When I bought it I was enticed by the LCD and the on-the-fly macro binding capabilities (it's predominantly used for gaming.) I'm a bit of a sucker for the gadgets etc and the LCD comes in handy for testing overclocking and hell just watching tv episodes when I'm doing something with windows everywhere. So in the future should I be looking at a replacement, is it possible to get a quality keyboard and still have some of the useful and useless crap that the G19 does?