Inspiron 9200 screen problem

(this isn't for me, someone I know has one with a faulty screen)

The screen only displays a small amount of the output "properly" but
if you press a specific area about 1" from the centre left of the
panel, it brings it back up almost completely correct again (still got
a few lines, but usable)

ISTR there was a specific model of Dell laptops that had major issues
with the screen - was this one of the models affected by any chance ?

(it's about 3 yrs old apparently, so well out of warranty, but the
screen has been like this for over 12 months - but only recently
became a problem when the owner needed to use it on the move again
instead of it being hooked up to a normal monitor)