Happened with the Xubuntu 12.04.1 amd64 install CD from a USB stick on an Asus X301A. Did not format partitions (we are on vacation and need to preserve data) but moved previous Ubuntu install into a subdirectory before doing a fresh install. Tried running apport-collect 1040599, but since I didn't file this bug it refused and suggested I file a new one. So rather than file a new duplicate bug, I'm leaving this comment and hoping the original poster shows up again before it gets closed.
Happened with the Xubuntu 12.04.1 amd64 install CD from a USB stick on an Asus X301A. Did not format partitions (we are on vacation and need to preserve data) but moved previous Ubuntu install into a subdirectory before doing a fresh install. Tried running apport-collect 1040599, but since I didn't file this bug it refused and suggested I file a new one. So rather than file a new duplicate bug, I'm leaving this comment and hoping the original poster shows up again before it gets closed.