[palosanto]

In the settings, under 'display settings', at the bottom in 'system settings' there's a setting called 'device orientation lock'. Mine was set to 'none' but I've just changed it to 'portrait' and it makes it do weird things like you're describing. Might be worth checking that one and setting it to 'none' if it's not already

Oh, ok I'll try it tomorrow. Thanks!