Any way to increase xwindows resolution like xconfigurator or is there a debian way?

[J F <j1234f@excite.com>]

I asked this yesterday, but I didn't get it working,
so pardon me for re-asking it.

I tried and got:
# dpkg-reconfigure xfree86
Package `xfree86' is not installed and no info is available.
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
/usr/sbin/dpkg-reconfigure: xfree86 is not installed

There was something maybe xconfigurator on
redhat, but the  dpkg-reconfigure seems the
right way to me (a novice) to do this on debian
if I could get it to work???

Thanks in advance.