I think I2C adapter has gone bad.
If this is describes what you are experiencing, then you need to either update your library to a newer version, or switch to a newer/better library like the hd44780 library.
I have downloaded 4 different library's,
including hd44780 library.
Thanks for every ones help. I am using sketches from the downloaded library's, as tests. I have downloaded 4 different library's, including hd44780 library. I keep getting the same result.
I have ordered a new display( I only had one and I soldered a I2C mod on the back) Once I have the new display I will know if its the code or the hardware.- Gary