Thank you to everybody that took time to responded to my question. I have followed up and researched your points and sugestions. I now have a better understanding of what is happening to my edits and have more confidence to carry on and just do do more. I now understand and have observed that Bing has more than one image at different magnification levels which make it appear that nodes move. I can find no evidence of anybody modifying my work. I also understsnd the effect of the natural error within GPS which explains why my self imposed "Quest" for absolute accuracy is not essential. Thanks again for all your help. help. Bye

Thank you to everybody that took time to responded to my question. I have followed up and researched your points and sugestions. I now have a better understanding of what is happening to my edits and have more confidence to carry on and just do do more. I now understand and have observed that Bing has more than one image at different magnification levels which make it appear that nodes move. I can find no evidence of anybody modifying my work. I also understsnd the effect of the natural error within GPS which explains why my self imposed "Quest" for absolute accuracy is not essential. Thanks again for all your help. Bye

Thank you to everybody that took time to responded to my question. I have followed up and researched your points and sugestions. I now have a better understanding of what is happening to my edits and have more confidence to carry on and just do do more. I now understand and have observed that Bing has more than one image at different magnification levels which make it appear that nodes move. I can find no evidence of anybody modifying my work. I also understsnd the effect of the natural error within GPS which explains why my self imposed "Quest" for absolute accuracy is not essential. Thanks again for all your help.