What is the 2nd drive--IDE, SATA, USB,,,etc?
What does the bios think it is? Re-boot the computer and hit the magic key that make it go into setup mode.
Also, post your hardware configuration--cpu, mb, ram, etc.
several bootable CDs that are nice to have around:
Ultimate boot CD--many different tools
Gparted--the Gnome partition editor + a mini linux
Knoppix live CD--includes qtparted