ok I finally got it working

lol. I re installed mdk 10 and I downloaded the lastest nvidia driver and instaled it asap... first I got a superb error saying
Code:
(EE)NVIDIA (0):failed to initialize the NVIDIA kernel module!
(EE) NVIDIA (0): ***Aborting***
(EE) Screen(s) found, but none have usable configuration
so I looked in my XF86Config-4 file and everything looked fine... so I remembred to add "nvidia" in modprobe.preload and I typed startx and everything worked well now

lol I'm proud

(did it by myself)
Many many thanks to all the people who are giving their time to help other people that begin with linux.
And thanks to otis for his great HOW-TO
***EDIT***
I've perform a glxgears and here's the results
Code:
22394 frames in 5.0 seconds = 4478.800 FPS
43321 frames in 5.0 seconds = 8664.200 FPS
42646 frames in 5.0 seconds = 8529.200 FPS
31956 frames in 5.0 seconds = 6391.200 FPS
43817 frames in 5.0 seconds = 8763.400 FPS
43944 frames in 5.0 seconds = 8788.800 FPS
43428 frames in 5.0 seconds = 8685.600 FPS
34805 frames in 5.0 seconds = 6961.000 FPS
43313 frames in 5.0 seconds = 8662.600 FPS
is these results are good for a Gforce 4 mx 440 ?