I’m only replying now because I had a bit of a hassle dealing with the vegetable patch and the garden...Problem solved.I started over from scratch: I removed the USB drive and set up the multiboot based on OBH 6.0.001, then loaded version 6.0.001 into slot 2 and version 6.0.002 into slot 3.This time, I set up the multiboot on the HDD, whereas previously it was on the USB drive.I did notice one issue, though: when I tried to install the MX Titanium skin for OBH, the audio cut out, so I had to restore a backup I had made shortly before, and everything went back to normal.