I accidentally erase and format the entire of my hard disk.....Absolutely ziltsss...zero...Now I install the window Xp Professional edition... But all the drivers in the computer don't seems to work...the network card also could not work.....I try to to go into the internet using another computer to packard bell web site but my model was not available: mine is the iMedia A821.....I even put in the part no. and serial no. on that web site but the number was rejected...Can someone please help me?????