I have the same bug on a live session on Quantal Beta 1.
However, when the desktop is loaded, clicking on the icon "Install Xubuntu 12.10", Ubiquity starts with grey background and readable text.
I have the same bug on a live session on Quantal Beta 1.
However, when the desktop is loaded, clicking on the icon "Install Xubuntu 12.10", Ubiquity starts with grey background and readable text.