Hi,
Thank you, but for one, the file is absolutely huge and secondly, I've a feeling I've sorted it, though I've got to have a closer look today (I finally gave in and went to bed, lol). I think the problem was that I was trying to UV map everything in the scene at once to save time, as all I need is a plan of it to aid in texturing. Let's see how it goes today. Thanks for the fast response!
Glen.