that will teach me to try and work on spreadsheets after a long day!

Your code works absolutely brilliantly!

The error was all mine when I copied the code over to the actual working spreadsheet and completely missed the code you has written for the CFD Basic Info master sheet.

Many many thanks for your assistance, I just wish there was a way for me to be able to buy you a cold beverage or three in repayment for your time.... you don't happen to live in New Zealand?