Projector image is cut off on left side??? (1 Viewer)

I was going through a THX audio and video test on a Disney DVD I have. Well, there is this one test with a circle and two squares around the circle and the left side of the outside square was cut off. This particular movie is in full screen but I messed with different settings on the projector and DVD player with no luck. I'm using component cables for the connection and I think it might have something to do with that. Like a setting or something???
Thanks for any help with this.

full screen or wide screen ??

What brand / model of display do you own ?

What brand / model of DVD player are you using?