[marxes]

I am noticing that Revert Document menu item is grayed out more often then not in Omnigraffle. I really value this feature and I'm wondering why this option is, for the most part, constantly grayed out. Couple important factors:

- Running Lion 10.7.3
- Omnigraffle Pro Version 5.3.6
- I have made edits to the document recently
- The revert document does light up very occasionally, but often by the time I realize that it was lit up and I go back to the menu to select it, it has already become gray again.

Again, I really would like this feature to work and I am eager for someone to give a clear answer as to what I am doing wrong.