I am getting lines on my tv that don't appear to be related to convergence. They are wavy blurry lines kind of like old time "air" signals before cable tv. They get smaller and closer together and move up and down the screen and finally disappear completely after about a half hour to an hour after the set is on and ONLY occurs when I first turn set on. They aren't permanent blue or yellow "shadow" lines that would suggest convergence problems, nor do I have any color "bowing." Can anyone point me in a general direction besides new convergence ic's? (unless that's what you really think the problem has to be, lol)