So yesterday while editing my map Radiant randomly autosaved and as a result my XYZ handles went away?? Not too sure what happened, and it has nothing to do with them not being toggled because I've untoggled and retoggled them about 100 times now. Any help would be greatly appreciated because I'm really close to finishing my map and now I can't really do anything because I can't rotate or move anything without the XYZ handles. 

Press P to open Preferences
Select the "Selection" tab
Make sure "Manipulator Handles" is checked.