Guest does not see serial port (Equinox multi-IO card).

I have a VMware guest (Windows 2003 Server), running on Linux Fc5 2.16.17 as my host.  I also have an equinox SST-8P multi-serial IO board on the host.  The serial ports are working properly and labeled ttyQ1a1 through ttyQ1a8.

I have added the serial port ttyQ1a1 to the guest, but windows will not detect the existance of the new serial port.  Ideas?

Thanks

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Relevent excerpt from my guests' VMX file:

serial0.present = "TRUE"

serial0.fileName = "/dev/ttyQ1a1"

serial0.startConnected = "TRUE"

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Output of setserial -a /dev/ttyQ1a1:

/dev/ttyQ1a1, Line 0, UART: unknown, Port: 0x0001, IRQ: 0

        Baud_base: 0, close_delay: 125, divisor: 0

        closing_wait: infinte

        Flags: spd_normal

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The equinox diagnostics show the port as operating properly.