Don't worry guys, I have sorted it out.
I think that as the Dishwasher wasn't used for 2 weeks the water in the pipes may have solidified a bit and it got a bit clogged up.
I ran the dishwasher about 6 times and everything is coming out clear now.
I have had a FDW60 for just over a year and had the engineer out just before the warranty ran out in June to fix the fact that it wasn't draining.
Anyway now, after coming back from a 2 week holiday, it doesn't clean very well and leaves everything cloudy and covered in a white film. It is...