Hi AndyC,
I leave my B2 constantly running. To help keep the display life for as long as possible I have set the 'Screensaver' setting to 16, which auto blanks the screen after 5 minutes of B2 inactivity (i.e. there is no web browser connected to the B2, and there is no music or radio station being played).
I do this because I have an automated incremental backup set to run from 01:00am every night to my Windows server. So I don't have to worry about forgetting to run a backup!
I am a retired electonics and computer engineer. These types of device normally are normally more reliable when powered up all of the time (unless you are living in an area with poor quality power or where there are thunderstorms and lightning strikes). When you power up a device from cold, there is an initial current surge into the device which can cause electronic components to fail prematurely.
You can find the screensaver setting in:
Main Menu -- Settings -- Maintenance -- Screensaver (set to '16')
Brennan has documented in its Support website the different values that you can use for this setting in 'Questions' -- 'Menu Overview' then scroll down this page to the 'Maintenance' section and look for 'Screensaver' section.
Regards,
Peter.