So everytime I change my background on my desktop, I go and delete the image. The next thing I almost always find is that the next time I turn my Macbook on, the whole thing freezes and I always have to safe boot my laptop.
Once I do manage to boot up again, my original background completely disappears and my desktop goes back to the "universe" background
I am getting frustrated with this. I don't know why deleting an image will cause my laptop to do this sort of thing. My Macbook isn't even a year old.
I have OS X 10.8.2
EDIT I just restarted my laptop and now it's even worst. It's quite laggy and my whole wallpaper is now just completely blank white.