I can boot and login as root perfectly, but when I try to enter on X( startx )
I have this Errors:

(EE) VESA(0): No matching modes
(EE) Screen(s) found, but none have usable config

Fatal server ERROR:
no screens found

After that, i tried editing Xorg.conf but I am just a newbie so.. i couldn´t do nothing.
I tried to change HorizSync to 60 because the freq of the LCD is 60Hz but it didn´t worked the same.
Here is some of the Xorg.conf file (it´s just this because i had to copy them on a paper..ugh)

...
HorizSync 60

...

VertRefresh 40-90

...

Driver "VESA"
#Video Ram 4096
...
#Default Depth 24
Default Depth 32
...

512 Mb RAM
Intel Celeron 2.4
...
Intel(r) Extreme Graphics 2 For Mobile
82852/82855 GM/GME Graphics Controler
64Mb shared

$Xorg -configure
$mv /root/xorg.conf.new /etc/X11/xorg.conf
$startx

Ok, i tried that and then when i replaced my old xorg.conf with the new one i realised that the new one was MUCH MUCH smaller (and when X runs with it it get a lot of parsing errors and font missing)
.. it was already done.. to undo the changes i replaced it back with xorg.conf-vesa (they seemed to be the same file with small changes)
to set this new xorg.conf i used:
xorgcfg -textmode

It enters on an pretty config form, there i found my Video Card and it´s driver.
The problem is that, now, the X is still not working, now it gets stuck in a black screen.. no way to get out, just rebooting at the power buttom.
If anyone knows the solution.. please help!!

this is the log file.. how to end font missing errors??(now that i have them)

http://n.1asphost.com/nofxscotti/xorgLog.log

Ok, I made it myself, anyway thanks...
here is my xorg.conf

xorg.conf for Dell Latitude 100L