SVP-324 LCD problem

I just got an SVP-324 controller. The demo program worked fine the first time I powered it up. After the first time that I reprogrammed it (blinking LED) the LCD stopped working. I've downloaded the example LCD programs and the demo program but the LCD doesn't display any characters. When I adjust the contrast pot there isn't any change on the display. It seems as though the LCD isn't being initialized. Any ideas?


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