You cant root 2.3.3 with gingerbreak. Only works with 2.3.2. To get r800a 2.3.2 and to have root on r800a 2.3.3 without battery issues. Go to wotanserver.com. Register for a new account (its free). Download the drivers and client software. Install drivers and open wontanserver software. Sign in and follow directions. Choose r800i 2.3.2 (3.0.a.??184 or something). Now download gingerbreak. 1.2( search forum or google) to your computer and unzip. Now connect phone to computer and drag gingerbreak to xperia play storage. On phone go to market and download and install "explorer". Open explorer and find sdcard/gingerbreak.apk and click on it. Now install and open. In gingerbreak press root and wait 5-10 mins until it reboots. Now go to settings/phone/system update. Only update Over-The-Air or else you'll lose root with pc companion/se updater. Enjoy your rooted r800i 2.3.3
P.S. Dont remove system apps unless you aren't going to update again 2.3.4. Use titanium to backup/ freeze apps you dont want to see in phone. Beware of what apps to do this to.
Sent from my rooted R800a 2.3.3 BL locked