Although the bookcase suits my needs and is visually attractive, the pegs on all three of the glass doors are too short to glide along the grooves. The result? When I lift any of the doors and attempt to slide them along the grooves, they literally drop. I have to balance them with both hands and work to evenly push them up and back into the case. This is obviously a serious design flaw. I've tried to pull the pegs out a bit but they are too tightly embedded.  The bookcase is a big disappointment in this regard as it takes away from the beauty and practical use of an otherwise great piece of furniture.