Hi friends Two days back i upgraded memory . after that when i am trying to install operating system through recovery cd, it shows the message saying that " WRONG MACHINE".and i tried DMI utility from toshiba website. but that is not working. and i dont have floppy drive in this laptop. can you guide me. when i contact that toshiba . they told me to their shop. they will charge me 100$. i cant effort. so please friends can you help me. I decided any more i will not buy any toshiba products. thanks peter