My phone will not stay in standby mode, any ideas?

[pkny]

I must say that i am happy i moved from the mogul to the touch but i have a couple of problems. If this has already been discussed please move me to the right place. I searched but not being able to search for 2 letter words like "Standby on" yielded unanswered questions.

So when i push the power button, the phone goes into standby mode. Within 3 mins it will automatically turn back on. It always does this and repeatably. I set it to turn off within 1 min so it won't completely drain my battery.
I think this is the cause for my low battery charge issue because the phone is warm to the touch even if i have not used it for 4 hours when.
Do you guys know what this problem might be?

Does this phone have sprint radio like the centro? My sprint music program doesn't work after I installed a new java program in there for opera mini.