Linking as duplicate to Bug #805095 “no File->Save As... dialog box if previously opened a file from root directory of a drive” - please add a comment here and revert the duplicate status if you don't agree and think these are different issues.
Linking as duplicate to Bug #805095 “no File->Save As... dialog box if previously opened a file from root directory of a drive” - please add a comment here and revert the duplicate status if you don't agree and think these are different issues.