I really liked the desktop pictures (themes) when I first installed 7, but since its beta and we're supposed to be trying to break it....I mean we're s'posed to be trying our favorites softwares on it I tried a registry cleaning tool from uniblue. It "cleaned" up all those themes and how! Now I can't even add any new themes...well, actually I can add 'em, but they don't work. The colors of the windows change, but the background picture stays black. I can put individual pictures on as backgrounds, but the moving/changung theme pix won't play nice. BTW, I have run the "restore your registry" thing to no avail.