This is annoying me and I have a feeling it's something simple...

In SCCM I had an advertisement for updating Flash Player, I can see 3 machines failed but when viewing status messages (right click, view status messages, errors) it shows up no messages

When viewing successes or even all messages it only seems to go back as far as start of this year. SMS never used to do this so it's probably a setting somewhere I've missed hiding older messages, any suggestions?