Vertical scanning is perfect- after hot will jump vertically and eventually stop jumping. Replaced the filters in the vertical circuit, no change. Is there a modification for this model like the VS6071 and others have to correct this?? Did I overlook something else? Heating and cooling make no difference and there is nothing loose. Thanks from Mike at the Video Center. My e-mail is ttkirkpat@xxxxxxx ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/