Thanks for all your help.
The computers that will not play POTC are all newer with next generation graphics cards over the one that will play. And believe me I have all the latest updates on all hardware on each machine. I get a game disconnect that says "Your Internet Connectionto the Servers has been unexpectedly broken".
I have the following attachments to show the only screen I can get to.
The first one is where Jack Sparrow is talking, only you cant see him. This is as far as I have ever gotten on the three computers that cant play.
screenshot_2008-1-20_13-21-56.jpg
screenshot-Mon-Feb-11-19-18-23-2008-2562.jpg