mmmm thats rigth, i think its not a good mode to work, because we need to load again the texture from the original imagen file, and we lost some time, the edit mode maybe can work better.
pbacot, yeah thats the happen, on windows the edit mode, change to other tab on same windows, then u cant ruin your texture.
and the other think, the problem whit the edit texture fail, i try to change access atributes to all folder tem on MAC and still fail the edit texture.
saludos amigos!