Not a big deal, it's just annoying. On my phone, I prefer to use the scaling-full option, as it removes the border and screen estate is a premium on smaller devices. But it reverts to low every time I restart. I also do not see a line in config.ini to set this manually. I am sure I have properly exited the client after changing this setting.

Like I said, its not a big deal, but just thought I should report it.

Create a support ticket and we can look into it. Include what phone you have, because Mali and Tegra3 devices have different settings.