I made everything and hooked up to the computer and now encoders are not working

I checked them before with Hyper terminal and everything was fine. When pressed Q it responds fine. But when I turn encoders a bit and press Q again nothing happens, the same +00000 appears, its suppose to change the value like it used to when I tested them first time.
I followed EK troubleshooting, measuring voltage on pin 14 U 2 and its all fine, encoders are connected properly, checked it numerous times. Encoders are getting 5 V. Reheated all joints as recommended by EK and still nothing.
Just when I sorted out gearing and belts and now this

What could gone wrong here?
bob