I know that it's not good to get frustrated when trying to look for the hidden image. But I was looking through the archives to see and found a few topics.
http://www.eyetricks.com/3dstereo20.htm

For the life of me, even after spending 6 hours, I can't seem to see the horse. Could anyone offer some insight? I can see the blip on the page just fine. And over here http://www.vision3d.com/dots.html , The two circles diverge out as 4 circles and the second set of two circles on the right seem to be a little higher than the set on the left. I'm very sure I'm using a divergent view and am not doing it cross-eyed as I took a camera shot of myself when I attempted the PhotoFocus state.

Any insight will be greatly appreciated.

Cheers!