Lines on half my LCD screen

[carajean206]

Hey I was wondering if anyone else has had this happen to them. I have a older dell 20 or 21 inch lcd ( with PIP and many other inputs )I have faint lines that are always there. I wish I could take a good picture that would show exactly what Im talkin about.

I wanted to know what it may be so that I can fix it. I cant afford another LCD of that size. I really dont need anything bigger than that.