On Canon 60D I have:
Updated Canon firmware 1.1.1 then rebooted
Set camera to M
Formatted 8GB in camera
Unzipped ALL files to root of SDHC
Selected "Firmware...." then I get FONTS.DAT not found
FONTS.DAT is on the SD card \ML\DATA\FONTS.DAT
Previously was running ML Dec22 with no problems
Question: "When you say ALL files" do you mean to include all the FIR and PDF files?
:o
Solved, download again.
I had the same problem. I instead of taking everything out of ml folder, put the ml folder on the card as well as your firmware