Where to complain about lack of Display Port support?

Hello, I've been using directv2pc for years now, and have been very happy with it.  Recently, I upgraded my display to an apple 27" LED Cinema display, which uses a mini-displayport input.  Since mini-displayport supports HDCP just like DVI and HDMI, and I have an ATI radeon 5870 video card with a mini-displayport output on it, I thought everything would work just as it had when I was using DVI.  Nope, Directv2pc gives me the un-recognized connector error.

So, Directv2pc needs to be updated so that displayport connections using HDCP are recognized.  Since the software's developed by cyberlink for directv, I'm not really sure who to complain to about this.  Anyone have tips for the contact info to use at either directv or cyberlink?