In the "Activity" screen the drop down box to choose what activity you want to see states "Prior Year".
When choosing this option I was seeing every entry from the start of using SAGE accounts, thinking I was going mad I phoned the technical helplineĀ and was informed that this is what I was supposed to see.
May I suggest that the wording is changed to "Prior Years", as this would be more accurate and those that are new to SAGE Accounts would not get confused like I did.