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New member
I just installed the 634 USB model and boots up fine showing "Crystalfontz.com" info.

I have installed CrystalControl and added the Crystalfontz 634 module with COM1 and 19200 speed settings.

When I add new screens it shows the info in the program (virtual screen) such as winamp, temp, etc. But the actual LCD doesn't show anything. Just a blinking cursor.

Is there an instruction manual on how to use CrystalControl?
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