I'm practicing layers (as a newbie). Got the first layer in o.k.
Then I tried to upload an image I'd saved as gif file.
Added a 'new layer' and went to file>import image to layer
The image showed up, but there were no tools etc available.
Then I hit esc (maybe that's the problem) to bring the tools up (wrong or right I've done that before) and the gif didn't show up on top of the other two layers.
I'm sorry if I'm not explaining this too good.