a) version del xorg?? (aptitude versions xserver-xorg-core #
i A 2:1.7.7-11 stable 500
b) version de los juegos??
AssoultCube 1.1.0.4 OpenArena
c) entorno??
KDE 4.4.5
d) repositorios??
#
deb ftp://ftp-mirror.internap.com/pub/debian/ testing main contrib non-free
deb-src ftp://ftp-mirror.internap.com/pub/debian/ testing main contrib non-free


# Line commented out by installer because it failed to verify:
deb ://volatile.debian.org squeeze-updates main contrib
# Line commented out by installer because it failed to verify:
deb http://http.us.debian.org/debian/ squeeze non-free contrib main
deb http://http.us.debian.org/debian/ squeeze-proposed-updates main contrib non-free
deb-src http://http.us.debian.org/debian/ squeeze-proposed-updates main
# deb-src ://volatile.debian.org squeeze-updates main contrib
deb http://www.debian-multimedia.org/ squeeze main non-free
deb http://security.debian.org/ squeeze/updates contrib main non-free
deb-src http://security.debian.org/ squeeze/updates contrib non-free main #Added by software-properties
deb-src http://http.us.debian.org/debian/ squeeze/updates contrib main
deb-src http://www.debian-multimedia.org/ squeeze main non-free
deb http://http.us.debian.org/debian/ squeeze main contrib non-free
deb http://ftp.ec.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.ec.debian.org/debian/ squeeze main contrib non-free #Added by software-properties
deb http://security.debian.org/ squeeze/updates main contrib

e) version del driver?? (el paquete es xserver-xorg-video-intel creo recordar)
pues hay instalados:
server-xorg-video-s3
server-xorg-video-s3virge
server-xorg-video-mach64
server-xorg-video-r128
server-xorg-video-nouveau
server-xorg-video-nv
server-xorg-video-vesa
server-xorg-video-all
server-xorg-video-isis
y otros mas... menos intel

Editado -- Lun Mar 21, 2011 4:13 pm --

Listo amigos míos... solucionado: Primero baje de esta página------> http://ftp.debian.org/pool/main/x/xserv ... deo-intel/
el archivo -----> xserver-xorg-video-intel-dbg_2.13.0-6_i386.deb
luego en la terminal como root puse-----> dpkg -i xserver-xorg-video-intel-dbg_2.13.0-6_i386.deb
Y LISTO una vez que salgo de cualquiera de los juegos vuelve a la normalidad!!
GRACIAS A TODOS!!