Autoconnecting a trusted bluetooth device

Hello.

I couldn't find the answer around, so I open a new thread (sorry if I missed
an obvious answer : i'm pretty aroun d here, please don't get offended)

I was used to connect both my headset and my pocketPC by bluetooth on my
tabletPC, and when one or the other bluetooth device entered the bluetooth
10m of my comp, then it automaticaly connected to it (as long as it was on,
of course).
Thus, turning my headset to on was actually putting it on and connecting it
to my PC at the very same time, and my phone was always under synchronisation.

I have actually no problem to connect my bluetooth devices to my comp, but I
just can't have them connectin automatically : i have to connect each one
manually everytime I need to connect them.

Can anybody help me ? It's not really preventing me to use those devices,
but it's very very annoying and I don't see where this can be parametred.

Thanks

oh, and of course, I was using XP when autoconnecting with devices.
Now I'm using Vista, i'm pretty pleased with it, and it's this only point I
can't find how to deal with