I am using a Phoenix BIOS 1.1N-4426-8A20, 01/10/2007 with a Fujitsu Xa 1526 laptop (AMD Turion 64x2 mobile TL-56), Windows Vista Home Premium. Any idea what the largest hard disk that is supported by the BIOS please? I have a 120GB drive and I would like to upgrade to 500GB or similar in both of the...