Since this option worked for you
-> Trackpoint: Enabled
PS/2 Device: Auto = (exit>save>boot>screen ok again, touchpad not working)
use it to boot the laptop.
When you get to the login prompt
type root and then press Enter.
When it reads
type your root password, and then press Enter.
Your root password is masked, so you won't see anything as you type.)
Now you need to edit the file /etc/lilo.conf (from your previous post I assume you have this file). The easiest editor to use at this point is probably pico, so at the prompt type:
and press Enter, which will open the file. Move the cursor to the end of the line which reads
(your line might read /dev/hda) and then press Enter which will give you a blank line. There you type
and then look at the bottom of your screen. With pico I think you enter "Ctrl+X" to save.
After you save the file with your changes, and get back to the prompt, type
which will return some output to your screen. If there are errors, post them here. If not, then reboot the laptop and see what happens ...
When we say issue "lilo" that means type lilo at the prompt and press Enter. You type the text/string in the quotes, but not the quotes, and press Enter.
If you get back into the system, you need to navigate to this page
in your web browser and study that before going further.