how to keep DI awake?

Incredible falls asleep and stops playing Pandora and slacker after about ten minutes. Where are the settings for this? Thanks!

 

Places to play with, in case others dont have an answer: settings/app settings/development/stay awake. settings/sound & display/screen timeout.

Sounds like something else might be up though. Those apps should keep going as you'd expect the phone/screen to timeout yet want the app to continue.