Hi, my kids received a tablet each for christmas, my daughters was easy and got it connected to wifi straight away, but on my sons tablet when you go into settings and then click on wifi etc it doesn't change colour (eg that orangey yellow colour) when you click on it and stays grey and goes nowhere. Any suggestions would be greatly appreciated. Thank you. They are android google 10" ver 2.2. I am also not very computer literate so if you could dumb down the answers that would be great also.