changing the hostname on cygwin on XP...

[System Overide]

i tried to change my hostname on cygwin on my XP machine and i got this error...   hostname: cannot set hostname; this system lacks the functionality   what does this mean, is there any way i can change the hostname... or even change the first part of my name... eg...   system overide@systemor   how would i be able to change the system overide part?   also, is there any way to make a new account on cygwin?