When I upload a GIF in Photoshop CS4, a window pops up that says "This is an animated GIF. You can only view one frame. Saving over this file will result in a loss of information." I clicked "OK", but then saw that the layer was named as "Index" and that the layer was locked. And, it only had one layer.
I've read in another question here that I should click on Image > Mode > RGB Color. I did, and the layer was successfully unlocked, yet the GIF still only had one layer, which is the first layer of the GIF.
Is there a way where I can get/unlock all of the layers in the GIF instead of just unlocking the first layer? If yes, how?