I am not sure what I have done here. I was attempting to remove some very faint graph marks on an image. I used the select by color. I then tried to delete what I had selected. Instead I got this kind of ghost image. I tried to move it and indeed it appeared to be a outline of what I was trying to get rid of. But now it won't go away. I even shut the program completely down, but it is still there. I have attached a screen shot and the actual file.
Thank you
Ofnuts...(oh I so want to know about your moniker!) I looked XCF file I attempted to attach yesterday (it was way too big) I tried to select the ghost and it disappeared this time! I have attached the screen shot of it just so I could prove to myself I wasn't dreaming. Thank you for the link! What an interesting and complex program Gimp has become! Wow, the nuances!
Argh! I opened the xcf file again and there is was again. I hid all the layers and it was still there! Then I used 'select all' and it disappeared. WIERD!
The "ghost" looks like the "marching ants" that delimit the selection. You can hide/show them with View>Show selection (or just use Ctrl-T).