Comment 9 for bug 68070

Oops, I just realized that the terminology I used in my previous comment might not be correct. I think what's being written is the master boot record (MBR), not the boot loader. The Ubuntu installer most likely does write the boot loader to the USB drive, but it overwrites the MBR on the internal drive. When I removed the internal drive and reinstalled Gutsy, it did the right thing. I then put the internal drive back into the box and am able to boot into either Windows or Ubuntu.