Blackberry keeps turning on after it dims??

Hey all, my problem with the Tour is I set it for the phone to go to "sleep" after 10 seconds of it not being in use. But as soon as the keyboard lights and screen fades to black, it turns right back on. Is there any way to solve this so that it stays "asleep" until I press a button? It's really killing my battery. Thanks!:confused:

Mine did this day 1 on 2nd bb. I just did a battery pull and it stopped waking up on its own. Would even wake up on keylock. But the battery pull seemed to have fixed whatever got stuck.

Sweet, thanks. I'll try it.