Thanks for your reply, I'll try to explain in simple words..
I didn't pre-format space on my hard disk, I thought as a windows user to find a kind of screen to do that during the installation..
I burned my iso at 2X ( i have a 4424x cdrw) on a cd-r using a freeware burning software, BURN4FREE... I thought my iso to be corrupted, so I downloaded it again from a different link, I burned it with the same method, but nothing has changed.
I didn't use a secondary cd rom drive for the installation.
Can u tell me the procedure to pre-format my hard disk? I don't care to erase my windows xp
Thanks for your patience, i'm a newbie