ydl 4.1 and display

[Robert Nuzum]

Hello,
I just installed ydl 4.1 from disks I burned and the installation  
went ok. I need information on how to change the resolutions of the  
display. I seem stuck with 256 colors at all resolutions except 640  
x480 and the windows are too large. I know there is a command that  
opens up somethiing. I tried xautoconfig with root but it was not  
recognized.
Any help appreciated.
Bob