Also, is there a Bluetooth Manager icon in your system tray?  You should see a Bluetooth symbol in your system tray, and when connected, the white 'B' (Bluetooth symbol) should turn green.  Then, when you disconnect, it should turn back white.   Are you seeing this behavior?

Also, could you please respond to my question above about being able to connect/disconnect via Hyperterm okay?

Ted,

Actually, yes, that information is very helpful.  It definitely sounds like a bug in the Serializer Lib... I'll try to recreate it this afternoon.

A local problem (with hardware) crossed my mind, but I didn't want to go there until we had exhausted all other options. :)

As far as getting a NACK when you first send a 'fw' command, there might be junk being prepended to the command string when you first a command, and my guess is that the Serializer firmware is complaining about it.

I'll be in touch this afternoon.

Thanks!