Just installed Windows xp onto a 40G WD harrdrive (all components brand new) and loaded xp onto 1 of 2 partitions. 2nd partition used for data only. Everything worked great yesterday. Today I power up the computer and my second partition is gone! Looked in Disk management and only recognized 1st partition. Need help, any ideas as to what caused this and how to recover or recreate that partition without wiping out the whole drive?? Incidentally Bios recognizes the drive but windows does not (at least the second partition). I'm stumped...any help would be greatly appreciated.