Thankyou Thomas,
It's very difficult to found an authentic user on this forum, for this reason i post very few here... In general users here are very very agressives...probably Apple lobbyist wich in fact pollute/dirt the Apple image... (as said in the link you have forwarded to me) very strange, for this reason i prefer Hardmac.com (in french macbidouille)...
In fact i gone to Snow Leopard, and all the problems have mysteriously disappeared... (after i tried Mountain Lion GM), i found Webserver, and ftp setting disappeared, on Lion only Ftp server have been removed from setting...
I think Apple is going in an newbies direction...
Anyway, there is still solutions to enable apache, or ftp with the terminal... but i prefer enable a setting in prefs panel...
Peoples have discovered another problem wich is probably hardware this one, not software, with the graphic card GT330M, and GT320, for now i cross my fingers (i hope i have got Applecare for my macbook pro)...
Sometimes the screen is full of artefacts... like when a graphic card is damaged...
I have never got this problem with Snow Leopard, but with Lion it came 2-3 times (for this reason i think i'ts an Lion Problem)... i'm not sure from where came the problem (graphic card, system, drivers, or just GFX card status update)... The time i got to make a screnshot, problem have disappeared... or may be it's not visible on screenshot (if it's a screen problem)
To be sure, i have done (again) an clean install of Snow Leopard, and then i have ran AHT... No problem my Macbook pro is perfectly worked... (done the simple test wich take 3 -5 mn)...
Ced
ps : i asked a refund for Lion to the Appstore, i got positive response the same day, Apple have gain my confidence again...