Ssnake, thankyou for such a quick response . I don't many other Simulation Companies, where a Director would answer a public forum question themselves on a Sunday morning Thank you ! I can confirm all map files are on the 😧 Drive and have been since installation. The File Path Option shows, Map Package Folder D:\SB Maps and I have 772 Gb free on D Drive. I was able to create a new Delta Map for the Beaudesert Map, albeit that this is a smaller map