HowI can change display resolutin and make it the default??!!!

in Winnt.sif

[Display]
Xresolution=1024
Yresolution=768
BitsPerPel=32

change them with what you need

I make this but The resoultion would be 800 by 600 pixels

Then this leads us to only 1 conclusion:

Windows does not have the drivers to run your card properly...

(Known issue when using a Virtual Machine)