Tablet [Q] Problem Powering on Dell Streak 7

Basically I'm on a rooted Dell Streak 7, and I'm having a pretty big issue. A while ago I really screwed the thing up, and I had to use the emergency shutoff button. Since then, I've noticed that the device frequently powers off and I have to push the emergency off button and it will turn on. This issue is REALLY getting on my nerves and I need to know if there's a fix for it.
PS, if it's rooted but the problem is hardware-related (emergency off button gets triggered & stuck sometimes), will they still service it?