Some extra (useless?) space is displayed on the bottom of the main window of orage. Looking at the code it seems than a mInfo_scrolledWin widget is created but not used (I might be wrong). Original bug report: https://bugs.launchpad.net/ubuntu/+source/orage/+bug/242558
This is actually fixed on BUG 3900. After 4.5.13.2 there are two additional widgets at the bottom and both are not there if they would be empty. *** This bug has been marked as a duplicate of bug 3900 ***
fixed in 4.6.0