floresta:
You aren't providing much information. Are you sure that the current drain of the backlight isn't causing your supply voltage to sag?Don
I thought about this a little more, I have a regulator circuit on this to step down to 3v... Now, it's working perfect! Well other than I had to change the resistor on the contrast. When I have the LCD on the text disappears and when I have it off it works fine. I have to find the right resistance that will work for both. Not really a big deal. Thanks for the help Floresta!