What Theme Chooser app??? Also for all of the people having a problem not receiving messages, or the phone not ringing I had the same problem, but I was able to fix it. What I did was format data and cache, then restore the Nand backup of the rooted stock firmware (I did a advanced Nand backup right after I rooted it for the first time, before I ever installed my first custom rom). I rebooted the phone and let it fully boot up. Then I rebooted to recovery again, format data and cache again, then installed UD 3.1.0. This solved all of my message problems. I am not sure if this was actually what fixed it, or just a coincidence, but it worked for me. Ultimate Droid 3.1.0 is running smooth now. Definetly worth all the trouble.