My phone keeps turning itself on

My phone keeps turning itself on as soon as i put the battery in, without me pushing the button then it gets stuck on the white telus screen and won't actually load up.  Yesterday it would get to the speed dial screen for a second and then shut off and restart again, so i left the battery out for the night and tried again this morning now it won't load up at all....
anyone had this happen?

ok, mine is doing almost exactly the same thing....

i have a lock enabled so every time i put the battery in it turns itself on and before i can even begin to enter my code it turns off again  but it only goes to the sprint logo and gets stuck there for hours unless i pull the battery back out

i want to say the power button is stuck but i can feel it popping back out... is there any way to fix this??? its been about 5-6 days now