A user in my office is sporadically losing the function of the redo button.
He changes data in several cells, is able to undo, but the redo button is
grayed out. Is there a reason that the redo button would not work? I have
checked that autosave is not active...so it's not a matter of the file being
saved between mouse-clicks on the undo/redo buttons. Also, the redo button
will work sometimes, then in the same worksheet (usually the same cells) will
not work just a few minutes later. What's going on? Anyone else have this
problem?