toshiba satellite (small screen)

[Vitor Py]

Sorry,

 My LCD appears in 640x480, and I can't change it. 

 Can somebody help me?

Thanks in advance,
Vitor.

 %uname -a
FreeBSD sanjuro 4.7-RELEASE FreeBSD 4.7-RELEASE #8: Tue Oct 21 22:19:49 BRST 
2003     root at sanjuro:/usr/src/sys/compile/SANJURO  i386

%X -version

XFree86 Version 4.2.1 / X Window System
(protocol Version 11, revision 0, vendor release 6600)
Release Date: 3 September 2002
        If the server is older than 6-12 months, or if your card is
        newer than the above date, look for a newer version before
        reporting problems.  (See http://www.XFree86.Org/)
Build Operating System: FreeBSD 5.0-CURRENT i386 [ELF]
Module Loader present