non parte la modalità grafica

[Arnaldo Ferrari Nasi <vs.arni@tiscali.it>]

Ciao, ho installato con netinstall, tutto senza problemi tranne che non 
parte la modalità grafica.
Dice:
"xfree86 version 4.3.0.1
release date 15 aug 03
x protocol version 11, revision 0, release 6.6
build os: linuz 2.4.29pre2 i686 ELF
build date 1 june 05

this version of xfree86 has been exstensively modified by the Debian 
Project and is not supported by the Xfree86 Project inc. in any way.
Bugs should be reported to the debian bug traking system 
www.debian.org/bugs/reporting

we strongly encourage the use of the "reportbug" package and command to 
ensure that bug reports contain much useful information as possible"

Che faccio? Aiutooooooo

TIA
Arnaldo.