Treo 700p Bluetooth Conflict Between Garmin GPS 10x & Motorola H700 Headset - Help!

[ArtModern]

I have a Garmin GPS 10x that's a month old and a newer Motorola H700 headset. They both work perfectly as does my Treo 700p. I've read that the 700p supports "multiple Bluetooth stacks" so that one can use two Bluetooth devices at the same time.

I want to know if it's possible to have my Garmin 'On,' (blue light flashing, satellite connection, etc.) and when I receive or make a call be able to listen and talk through my H700. Right now when my Garmin is on and I receive a call or make one the headset logo still appears in the top right of my Treo's screen HOWEVER the larger box logo stays as a picture of a Treo and does NOT turn into a headset photo as it does when the Garmin is off. Sound will not come out of the H700 nor will it accept my voice as long as the Garmin is on. In order to use my H700 I have to turn the Garmin GPS unit off AND do a soft reset of my 700p. Then my H700 works perfectly.

So the Garmin 10x is in conflict with the H700 when the Garmin is On. The Garmin functions perfectly (maps, directions, etc.) when the H700 is on HOWEVER as above stated the H700 will not function listening or talking-wise until I turn off the Garmin AND soft re-boot my Treo 700p.

Tech at Sprint didn't know how to fix this or if it's possible to use both at once? They put me through to Palm Support. (No $25.00 fee because the Sprint tech stayed on the line!) The Palm tech said that despite the 700p being able to accept Bluetooth multi stacks that it still will not allow me to use my GPS & H700 at the same time. Is this true? He mentioned the possibility of Third Party Software that may allow H700 use while my Garmin is on but advanced tech was closed. He 'promised' to phone me tomorrow once he's spoken to a higher level tech. Famous last words? We'll see...

Anyway, in a nutshell does anyone know how to have the Garmin 10x on and functioning and still use (get sound of and be able to talk into) a Motorola H700? I tried every which way... No dice, unless it is impossible? If so, why not since they say the 700p CAN run two Bluetooth devices at once?