Originally posted by BloodyFinger
Is this going to stop me from watching movies on my computer or using video inputs for recording live tv?
I am not quite sure what u mean by this.
In anycase. HDCP is a form of content protection. It is a very WEAK system mind you - since it was fully cracked by cryptographers (guys with math PhDs, and not these noobs that call themselves "hackers") a few years ago.
Essentially, if you were to connect a display device that does not support HDCP, to source device (DVD player, cable box, PVR, etc.) that does support HDCP, the SOURCE will not transmit anything. The HDCP specification dictates this. So, if the monitor doesn't support it, but the source does, then your monitor will not get any signal.
Some sources do transmit, but downgraded signals (i.e. lower resolutions). And some allow you to disable HDCP on the "source" (e.g. DVD player). Really depends on what device you have. If you elaborate more on your question, I can give you a more detailed answer.