I have the same problem (. You have an unsaved comment). Clicking or pressing Save does nothing. If I press Cancel, the comment disappears. Either show me the freaking comment or get RID OF THIS. If you forced us to save before exiting like Word, this would not be a problem.
I've lost HOURS over the last year re-typing comments that just DISAPPEARED! Sometimes they come back the next day. Maybe you should write these comments somewhere SO I WON'T HAVE TO KEEP RETYPING THEM!
A very angry customer.