HC-05 bluetooth connection problem

I'm using a program called Virtuino to connect my android device (kindle hd 10) to my arduino UNO.

I had this all working fine at one time. I was reading data, triggering switches, etc.

All of a sudden it quit working.

I can see and connect to the HC-05 but it is like it won't talk.

I got a terminal program and can connect and disconnect from that just fine. I can also access the HC-05 using AT commands.

I got a new kindle for Christmas and a fresh download of virtuino on that. It doesn't work on the old one or the new one.

Any suggestions on how to track this problem down further?

Thanks