power switch mot working

[cris]

last night i was out with friends. i went to hit the power button so the screen would come on and nothing happend, i tried again nothing, so i took the battery out, put it back in, before i could put the cover back on the phone was booting up, i thought weird, never booted up before without pressing the button. well it booted up but as soon as the display went off after the 1 minute delay it would not come back on. so i did a reset again, now when i press the button it comes on and asks me if i want to power off, i select no but comes right back. after 2 restores its still doing it and the screen flashes like turn signal on a car. i guess ill be getting a 5th replacment phone.