I just set up my. I just set up my panasonic TH-42PX80U plasma tv and I now have a black bar along

Question

I just set up my panasonic TH-42PX80U plasma tv and I now have a black bar along the righthand side of the screen. I tried to use format button but do not have an H-Fill option which I think may fix it

when tv is not switch on, when i try to switch it on it goes on stand by. I try with a remote but still not work. Any one who can help . Thanks