Getting ROOT on Indy (last question!)

OK, my Indy is now (almost) all working. I need to change the monitor refresh rate, but I can't do that unless I can log in. I don't have the root pwd either. Apparently you can't go to single user without the root pwd. I can do just about anything -- I have a serial console hookup, but no root to go with it :( I can't get it on a network either... I tried using the setenv command to set the IP to a local address, but I don't think it works (new to IRIX/SGI, so that may be way off!) Anyone have any ideas? I already tried most of the normal ones -- guest, tours, lp, etc. and found them to be closed! Jeez, just what I need... a security consious admin! I have no floppy or CDROM installed on this, nor do I have a SCSI adapter to mount the drives under linux and do the deed the _simple_ way. I also lack IRIX media. Any thoughts? I don't want to buy many more components... but I guess that if I have to, I can make a few more purchases... Thanks! Owen