VISA Read- error -1073807339?

[IBAHKA]

I think that VISA is not reading anything from my serial port.  I am
using the Polhemus via serial, yet I have not been able to read
ANYTHING from the device.  Do I have to write a driver before I will
be able to read?  I am using VISA open, read, close and I am trying to
use timeout, but I don't think I am doing that properly.  Please help!
Thank-you!