I configured two custom sounds profiles - one for sounds and one for vibrates when I'm at school. However, I can't seem to find (because there may not be one?) an option to have the screen light up when I receive emails, SMS, or BBMs. Although I can determine which type of message I'm getting based on the number and length of vibrates, it'd be nice to have the screen light up so I can see the message as well. Is this possible?