Hi Monkeyman,
Welcome to LL. Have you run a system update (menu > all > install updates) since installation? Additionally, though it shouldn't be a requirement for hiding a panel, have you checked for additional video drivers (menu > all > install drivers)?
Welcome to LL. Have you run a system update (menu > all > install updates) since installation? Additionally, though it shouldn't be a requirement for hiding a panel, have you checked for additional video drivers (menu > all > install drivers)?