Hey MR, I recently upgraded to ML from Lion. One hitch I've come across so far is that I set my desktop wallpaper to the new ML galaxy one, but when I create a new desktop window, it reverts to an old wallpaper I had (the beach one). Does anyone know how to fix this? Also as a side question, I feel like my fans kick in more often than before on Lion, even though I do the same tasks. Is it just me?