Aprilgem, I think he's having trouble getting the "Replace Colour" tool to handle white, and a couple of others. buzzloz, have you tried specifically selecting the colour you want to replace, or replace it with? If you open the dialog, you can be VERY specific about the coulours, then you can set the amount of "flexibility", much the same way you would if you were using the "Magic Eraser". If this is not the problem, please elaborate. Lou.

"..... and that was when things got interestiing."