I have no windows borders. It is probably a compiz fusion issue. But I don't know how to uninstall that.
I can't see Unity, it worked in 12.04 but not on 12.10 or 13.04. And I want to uninstall the Linux Mint theme/skin which has never looked right. up until oddly enough 13.04 in which it looks ok.
Can I just clean install the 13.04 without wiping the whole hard drive?