quartus 10 wont generate sof file

thank you for the information Kevin. Now I have downloaded the web edition and I am using a very simple project(below) to test out the compilation. But I have the same surprise as before. the sof file wont generate.

I ame using Windows xp 32 bit as OS, and I tried my project on C and D disk, in my project I assigned all IO with appropriate pin, but nothing...

again thank you for you quick respond

library ieee;

use ieee.std_logic_1164.all;

entity angate is

port(

SW1, SW2 : in std_logic;

LED0: out std_logic

);

end entity angate;

architecture a of angate is

begin

LED0 <= SW1 and SW2;

end architecture a;