Need some help with Toshiba 51H84. Experiencing a severe and worsening vertical line bands and fuzzy picture problem on this unit that is 5 years old. Am unable to get drop down menus to display from Picture menu for the Picture Settings and Convergence areas thus unable to make any adjustments or reset. TouchFocus works fine but has no effect. Can anyone please tell me what may be causing this issue and what are any possible solutions. Screenshots attached for your review. Any help or guidance on potential solutions or parts is most appreciated. Thx.