Thanks for your time, folks.
Yes, this is a default VL 7.0 SOHO installation, on a brand new SSD, partitioned by my newbie self using the Gparted tool to 2x EXT4 partitions, one for the root / and one for home /home.
I didn't do anything special at all during install and now, to get it to boot at all, I have to press 'e' at start up, which displays...
setparams 'VectorLinux GNU/Linux, Linux 3.2.6'
search --no-floppy --fs-uuid --set=root f66d0295-24ba-4c37-8509-62fa64cf2dc6
linux16 /boot/vmlinuz-3.2.6 root=/dev/sda1 ro splash=silent vga=788
I have to change ext2 in the third line to ext4, and vga=788 in the second last line to vga=769: otherwise it will not boot.
This is fine. I worked this out myself by trial and error and a bit of googling for vga codes. However I just need some more general advice on how to save this file; what this file is called and where it lives (so I don't need to do these edits for every time I boot).
I did find a file but it had a comment saying not to edit it. The file which apparently generates it did not allow changes to these particular parameters. hence I'm a bit stuck.