So I have an ATT Galaxy s2 and i decided last night to root it. everything went just fine. today i was reading up on how to backup my ROM prior to putting any new ones on it. So i proceeded to download something called "ClockWorkMod Recovery" and i tried to boot my phone into ClockWorkMod Recovery and now when i boot the phone up it says Samsung Galaxy SII GT-19100 and then goes black. I am freaking out, i don't know what to do. Somebody please help me!!