I am guessing you mean your top half of the pix is stretching, starting
to foldover or something like that...(usually what folks call "retrace
lines" will cover the entire screen)
lots of folks just use the shotgun method=97replace all the electroytics
in the vert vertretrn circuit. Caps are cheap, & you may save yourself
another repair down the road perhaps.
Or you can get the pinout of your vert ic for a bit of guidance.
Reflow any poor looking solder in the area (and any poor
solder-high-heat areas while you are at it)
Once again, you may save yourself another repair in the future