Often when modeling I have a need to apply multiple layers of displacement, with each displace modifier using a different texture. However, every time I go to the texture panel and select one of the textures the topmost displace modifier (and none of the others) switches to using that texture. I then must go back to the modifier panel and switch it back, which is a royal pain in the neck to do this every time I go to edit a different texture.
Why does Blender do this? I don't think it is a bug as I can remember it doing this for as long as I have used Blender.