DVI cables - is there a standard?

I was just talking to an electronics warehouse.

I was told that if the PIN-OUT on the DVI cable is not correct,

then not every pin will have a signal to the TV. Therefore, you

will not get a digital signal. You would only get an analog signal.

Is this correct? Was there no standard set for DVI-D cables, and

the manufacturers are doing all different pin-outs?


UGH, I'm so confused.