You (Francesco) should not have to reinstall just because you broke your
X, though. We can have a look at the problem if you post the output of
the following three commands:
lspci | egrep -i '(video|vga|display)'
01:00:0 VGA nVidia NV11DDR GeForce2 MX 100 DDR/200 DDR rev b2
awk '/Section "(Module|Device|ServerFlags|Extensions)"/,/EndSection/' /etc/X11/xorg.conf
"Module" load bitmap ddc dri extmod freetype glx int10 vbe
"Device" Identifier (see above); Driver nv; Bus PCI:1:0:0; Option: UseFBDev true
egrep '^\((EE|WW)\)' /var/log/Xorg.0.log
(The last one should be run right after you try "startx".)
oper /dev/fb6 (or fb7) no such file or dir
EE Unable to find valid framebuffer device
EE NV(0) Failed to open framebuffer device
EE Screen found but none has usable config
Directory /usr/X11R6/lib/X11/fonts/cyrillic does not exist
'fonts.dir' not found (or not valid) in "/usr/X11R6/lib/X11/fonts/100dpi/" or 75dpi/" or 100dpi" or 75dpi"
open /dev/fbo (or 1 to 7): no such file or dir
Follows e-mail with other information
Thanks
francesco