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

