When I bought a new 512 DDR memory and installed in my computer then turn power on and pop up window says I have to reactivation. I dont have an internet yet so I called activation by the phone and they gave me the number. Then all number are invalid. I dont know what to do since they hanged up. It's crazy and dont know what to do becuz I dont know who friends have an internets. what can I do? should I bring to best buy to activation for me? I need do something before it shut off, I have only 3 days activation remind. PLEASE HELP! I will appreciate if you help me. Thanks!