Blu Ray...Resolution Problem

So most of you guys know i just got my new computer which ROX and i decided to go with the 1920x1080 monitor bc i saved a ton of money by buyin that over the 1920x1200. Well Here is my delima.

So my computer can play blu ray. However, When i put the blu ray disc in it starts playing then will stop. And a msg comes up that says:

INFORMATION:
this content is protected. Cannot play movie at the current display settings.

I think it goes somethin like that. I checked my display settings and its set to 1920x1080 and thats what blu rays run on??? Im really confused do i need to set the display lower i don't understand at all any help would be great.....THanks Again

What are you computer specificaitions? Are you running to you rmonitor using VGA, DVI, or HDMI? What software are you playing these Blu-ray disks with? We need more info.

Well the software im using is....I cannot think of the name but its on HP computers im not sure what it is. I would check the software but im on my laptop and my computer is shut down. Whatever it is its on my HP thats all i know?? So im sure other HP computers with Blu Ray have the same program.

MY specs:

HP AMD Phenom Quad Core
3.0GHz
750GB
Nvidia GeForce 9800GT
8GB Ram

Ummm and i hooked it up via HDMI to HDMI cord.

Sounds like an HDCP issue to me.

HDCP 'attempts' to copy protect BD's in certain situations.

Two easy workarounds...
-Switch from a DVI/HDMI to VGA monitor cable
-Install AnyDVD by Slysoft. (Thats what i did)

Apart from that, get some good s/ware like Powed DVD 9 etc.