Playback problems

When playing back a selected section the playback stops at the end of the section. Fine. But when restarting the playback it starts from the end of the section. How do I make it restart from the beginning of the section? This may seem trivial but is absolutely essential to my use of the software.

When playing back a selected section the playback stops at the end of the section. Fine. But when restarting the playback it starts from the end of the section. How do I make it restart from the beginning of the section? This may seem trivial but is absolutely essential to my use of the software.