So Im having this problem with The GIMP, if you haven't looked at the title.

My colors are going weird. If I select a light green, it gives me black. If I get red, it gives a dark redpurple. I have no idea how this started, and the color selection is on hue, so that isnt the problem.

Any ideas? How about this:

If your suggestion gets it working, I make a smiley for you.