This is NOT vert.collapse, nor is it foldover problems. This unit has a band of thin horiz lines at the bottom and another thin band of lines near the middle of screen. It's visible on both tuner and AV inputs. Changed D422 (75v zener) , and the three electrolytics (100uf/35v, 470uf/35 and 2200/35 i think). No change. No response to heat either. Any ideas anyone? Ken Dyche Mississauga T.V. Inc. (est. 1952) Mississauga, Ontario Canada ***************************************************************************** Submit A Repair Tip Here, or Change/Remove your Email Address: http://www.tech-assist.org/secure/tip/main.html ***************************************************************************** For automatic password retrieval 24 hours a day, go to: http://www.tech-assist.org and select "Lost your Login Info?". *****************************************************************************