I think there may be something in your theme that make the phone and message app to glitch. I couldn't make a call and when I send a SMS I could not see what I had sent until i backed out and went back in. I flashed back to ics ultimate theme and it stoled . That's what makes me think it is the ygx theme.
Sent from my SGH-T679
Ill have to look at it i flashed both running mms and calls fine i noticed a problem with my framework.jar for the overstroll glow the smali for widgets is bad but that's gonna take some time and actually wildchild i was gonna seek ur help on this please
Sent from my SGH-T679 using XDA