Thank you for your help. Perhaps turning off the computer and starting again did the trick. The route is now fixed in the correct place on the map. I know not why.
It's hard to know what the cause of the problem was Elizabeth but glad it's working OK now.
Louise - Glad you like the site. If you want to include routes in Microsoft Word documents a good way to do this is to download the route as an image (selected Downlaod from the menu) and then import the image into your word document.
John