I see this message 'pop-up' on Dell 270 models when using Zen 65 SP2

According to this link:

I should be able to find the file that references the vga mode. In this
case, "lilo.conf."

I've uncompressed the "root" imaging file found in SYS:\TFTP\Boot and
'grep-ed' for lilo.conf and cannot find it. Am I looking in the wrong file?

Thank you ahead of time,