Droopystop
Don't worry about the 7500

!! This is what the forums in general - not just this one - are about.
I will look back to the thread on Sunday night with whizzy in hand and also dig out the CRP cd that I have and go over things again. I must get my finger out and get the exam sat otherwise October will be on us and I will have to sit Airlaw and HPL again!!
Thanks for the info guys, both the relevant stuff and the banter.