I used Matts utility to install JB on my XT912 that was running Gingerbread. Everything loaded ok but when the phone is running the screen has vertical lines that glitch on and off the lower half of the screen and a glitch on the right side. My phone is stock no root and I did option one to wipe data. I also installed 64 bit Motorola drivers. Is there anything else I can do? I ran the install several times on two different computers but I have not tried it on my Mac yet. Thanks for any help.