All buttons were frozen except for the power button.

GIVE THIS A TRY

Press and hold the home button and the power button, this will reset the phone.

A Hard Reset might help. it will bring lost file/folders back.
Also to turn on phone in safe mode, but not if cannot get passed initial Android screen.

Pull Battery to power off phone.

Hold Up Volume button, and power on button simultaneously until green android guy and DOS window open.
If Home key is solid button, then also hold
up vollume button, home button, power button.

use volume up and down to scroll.
Scroll down to Reset Manufacure Settings.
Use power button to select OKay.
Then select reboot system.

Look, enV2s **** ****. almost everyone at my school thats had one, the front buttons quit working... even mine and i only dropped it once. its just a bad phone when it comes to front buttons.

i think i have the same problem i also pressed reset button and now it doesn't allow me to do any thing please can someone help

I have seen this happen wit a few other Iphones and the hardware parts for the power button seem to be very fragile and easily broken.

open it up look inside any lose scrws baecuse when my did that it was just a losse scerw

WOW...Hi, bballgurl4321. Unfortunatly that exact same problem jus happened to me earlier this week...what i did was, i took my phone up to a sprint store actually today lol jus got home actually..but i took it up there and LG discontinued the LG Rumor..im guessing from so many deffects and problems that seem like they never stop. ive had 3 diffrent LG Rumors so yea its a horrible phone...but anyway, they replaced my LG Rumor with the new LG Rumor2...the same day...and so far so good..so try that...u should gt the same results and they should give u the free upgraded LG Rumor 2

the screen is dead, take it to your local cell phone service provider

No sorry
there is no button controlling the screen
sounds more like a physical fault,