I decided to re-start the project with the default settings rather than putting in my own custome settings and the problems seams to be ok now. Now all I need to do is think about codecs and all that lot.
So I guess the moral of the story is not to muck around when your not 100% sure what your doing ... or at least do a test before you get too far into it.
Cheers for you help. Back to work then. :headbang: