Here is my system setup: (running WinXP) -MOBO -->ASUS P5WD2-E Premium. http://www.asus.com/products.aspx?l1=3&l2=11&l3=248&l4=0&model=981&modelmenu=1 -HDDs --> Western Digital, (1st)900JD, +(2nd)3200KS Drivers that I have downloaded consist of: -from WD http://support.wdc.com/download/sata/siig-sata-win.zip -from ASUS http://support.asus.com/download/download.aspx?SLanguage=en-us From what I already know: In the "Device Manager" in "Control Panel" I can see and view the two HDDs and open their properties...having seen this they both are in location 0(should i change one to another location? If so how do I do this?) Both HDDs are said to be working and running fine(according to the device manager). In "My Computer" I can only acces the initial WD900JD disk through the "C:" drive...there is no sight of the second HDD. Also the HDDs are connected to my mobo in SATA0(WD900JD) and SATA1(WD3200KS), the sockets go up to SATA3. Both disks are SATA and neither of them have an IDE connection(standard now). Should I change something in the BIOS?(any guides please) If I'm unable to do this ill have to reinstall Windows and my user files to the larger HDD(320GB one)...and ditch the 90GB one. Any help is much appreciated please. Many thanks!