wrong sreen resolution

[Doug Stewart]

Doug Stewart wrote:
> I have a system that has  Windows  on 1 partition and Ubuntu-64 on a 
> second partition and now Ubuntu-32 on the third partition.
>
> I am using the  64 bit hardy but my 32 bit hardy  I have set the screen 
> resolution to be too big and all the left side of the desktop  is not 
> visible. 
>
> Can I fix this from the 64bit  system by editing a file on the 32bit system
> if so  how?
>
> If I boot in safe screen mode on the 32bit system, what file should I edit?
>
> Thank for being there to help us beginners.
>
> Doug
>
>
>   
Since I got on answer let me ask a simpler question.

what file should I edit to change the screen resolution?