Monster sound problem.

I am having a problem getting my monsterII sound card to work in a recently upgraded system. i went from the motherboard in a compaq presario 5600i, to an asus A7N8X-X. the system is running win98SE.
the error message i am getting is " your Monster Sound adapter is not plugged ito the primary PCI bus. The MPU401, joystick, modem and soundblaster capabilities may not work on a secondary PCI bus "
i have tried moving the card around to all of the PCI slots available on the MB, but istill get this notice. what could be causing this?