Yeah tried that, so playing a bit more I wanted to delete a platform so I right click, select delete then check platform.xlm to see if entry has gone which it has however when I restart launchbox its written back in ? I thought I would be clever and set the file to read only after launchbox has made the change but on restarting it obviously is writing to it as it complains of no access and hangs ? Have no idea why any change I make is undone upon restarting am kind of fed up now!