Tools > Options > Other tab.
Until now, the default of "Last 12 Months" was fixed. You were able to change this after the program started but when you exit the system, it reverts to "Last 12 months".
If you want a different date range to be the default, you can set this option.
Keep in mind that setting it to "All Dates" will have an negative impact in performance, especially with large databases and network/multi-user.