Same problem as junemb. Spent over an hour today with Adobe Support. No good results. Tried 1.7.2 version, no difference. Someone should know why DRM won't open on Kobo Glo.
This is my second K. Glo. One I had in Dec.2012 non of these issues. Now with this replacement Glo ( touch screen problems with first one ) it's a NO GO in regards to DRM right from the start.