Can't remove blue PIP (?) section in lower RH...

Question

I have an Olevia 37" LCD TV and I guess I'm just getting out of touch with all the new bells and whistles. Two issues:1) I haven't played a DVD on the player hooked up to it in about 6 months because I can't remember how. I try everything on the remote and it's just not intuitively obvious to me.2) Somehow, a blue rectangle (about an 1/8 of the overall screen) appeared in the lower RH corner of the screen and I can't figure out how to remove it. Very annoying. Help!When I got HD service from TW Cable, I was told my Olevia remote would not work and I had two remotes (one from TW and one for Olevia). Now I have a universal remote from TW and I can't figure out anything!