Join Date: Jan 2004
Location: Carleton Place, Ontario, Rogers Cable
Ghost, on my TV, the "Vertical Correction" parameter is global and is under a different menu. In HD mode, all my zoom settings (including Vertical Center) are greyed out just like on your TV. You need to look for a similar parameter but in a different menu (other than the screen zoom menu).
SA9865HD; Panasonic TH-50PZ850; Denon AVR-X4000; Tannoy: Arden, S8C, S8LR; SVS 16-46PC+; Oppo 971; Harmony 659/680