[GeoffR]

I have had my Glo freeze while reading certain badly-constructed books, but the freezing always stops once I fix the problem with the book, so I don't count it as a problem with the device or firmware.

(The main problem is with books where the publisher puts the entire book into one giant html file instead of breaking it up into one file per chapter. Easily fixed by doing an epub to epub conversion in Calibre which splits the files correctly.)

Edit: I should add that the freezing doesn't occur at random while reading the book, but only when doing something like changing the font settings. I think it is just that at those times the device has to reprocess the current html file, which can take a long time if the file is excessively large. If the freezing happens at random then I think that would point to a hardware fault.