LaCie Electron 19" CRT Monitor "lower 2 screen horizontal lines" Questions

...2 of these monitors and have this problem. I was so frustrated turning the monitor off and on until the white line disappeared that one day, I punched the screen. And it worked! So now whenever this ...

...2 of these monitors and have this problem. I was so frustrated turning the monitor off and on until the white line disappeared that one day, I punched the screen. And it worked! So now whenever this ...

lower output due to low Switching or a low value on the main capacitor. Check this out, measure the +B on the mains end and also the secondary side which will confirm.2. If the secondary +B is correct

2: I've had a fair bit of experience with this as well. The fact that the line shows the same way regardless of the monitor's own tilting orientation, means the error is probably coming from the video