Dual Booting

I recently installed vista on my second hard drive. Now whenever I boot, it won't give me the option to choose which OS I want to boot with, I tried disconnecting and disabling the HD with vista on it but when I do so it says select the proper boot device then Reboot.
please help me.

http://www.ocforums.com/showthread.php?t=495529

dont know if this will help you but it cured the problem for me.. post 2 is the answer