Getting rid of REX clouds
I installed REX a while back and after tweaking a finally admitted that my machine wasn't quite up to snuff to run it. So I uninstalled it and lo and behold the REX clouds are still there. No REX program, just the cloud textures and some other random textures. And no, I did not back up my originals like a good simmer would. I need to get rid of these clouds but don't know how. Anyone?

...?