Hello to everyone. I´m new to this forum so I apolozie in advance for any mistake I should do in my posting. I live in Argentina and I bought a second PC with a SAMSUNG disk of 320 Gb. This happened in February 2009. This are the main data of the machine: Motherboard: ASUS M3N78-VM Processor: Athlon 64x2 dual 6000+ RAM 4 Gbytes Soon afterwards I discovered that it was short of disk space and in March 2009 I bought a second disk: a SEAGATE. This was a brand I trusted for many years ago but.... This are the data fron the label of the disk: Seagate Barracuda GT 7200.11 500 Gbytes S/N: ST3500320AS P/N: 98x154-305 Firware: SD1A Data Code:09264 Site Code: WUXISG WWN: 5000C50012328F2F Product made in China A week ago when I start up the PC in the morning, as ever, I din´t found the Seagate any more! It appeared in WExplorer but the directories only. When I try to open them nothing happens. I began, in great despair, to google and somewhere I read ¨bricked¨ and from there on I reach your site. After reading many pages I am in a really mess and I don´t know what to do. According with some of you, I noticed that it appeared in the POST correctly with 500 Gb, UDMA 6, etc. Going to the setup it appeared also with 500 Gb, SATA 2, etc. I take it off the PC, and tried it in my hand and it seems to me that it spin well, without any noises. In the site of Seagate it appeared that I have the last firmware update. Of course I don´t update for myself, it is as I bought it. I need a great help, I suppose. Can you help me?