GPS Data Logger Software - BT747

I have installed various versions of BT747 on a Mac OS 10.6.  Whether accessing my iBlue 747 A+ via Bluetooth or USB,  I constantly get an error that the port is not found.  the /dev ports do exist, and other programs (HoudahGPS) can see both USB and Bluetooth ports so I know that the device can connect.  I have tried several versions of BT747 to no avail.

Any ideas?

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