Emma, I recently had that problem with a birmap image. I saved the image as a tif and was suddenly able to erase. Don’t know why, but it worked.
This might sound obvious or silly, but, is it possible that someplace around your image you have just a few pixels selected – acidentally? You can erase till the cows come home, but nothing will happen if you have a pixel in some corner active.
Just a thought.
Arron
Ok admit I’m lost, surely it would all look white?? (am trying to erase black lines). My background layer is white, but had this problem on that layer too (although that is automatically locked), which is why I tried pasting it to a fresh layer……..sigh…..
Thanks
Emma
Thanks, obvious is often good. i had that thought myself and pressed deselect all just in case. I also tried purging undo, history etc etc, no effect.
Emma
You can unlock a background layer by double clicking on it and renaming it. As long as it is called background (in italics) it is a special layer. It can then be deleted, or you can erase to transparent.
If the BG is white, and you delete from a higher layer, it will indeed appear white where you erased.
Ah ha, so effectively it is the same. My trouble was those black lines just not dissappearing. Sometimes i hate computers……..grin
Emma
This seems a little silly, but every once and awhile I run into the same thing and it usually something simple like I have the wrong layer selected and it is erasing on that one instead of the one I wanted, or something is selected somewhere.