Fedora Installer Giving Me a Circular Argument

I finished downloading the Fedora 11 Live KDE this morning and thought
I'd give a go (I woke up real early and couldn't get back to sleep).





So, it booted fine right to the KDE desktop (from the LiveCD), cool.



Then I click on the "Install to Hard Drive"; which takes me through all the steps leading up to the partitioning stage.



I select custom partition and set up the partition I want to use for Fedora.



Dadada...click next: "Bootable partitions (/) cannot be on an ext4 filesystem".



So, I edit the / partition to format as ext3: "Your / partition does
not match the the live image you are installing from. It must be
formatted as ext4".



Brilliant!