Bluetooth Issues Please Help !!

[djm1k0]

i have a sony vaio VGN-A250 windows xp sp2. my laptop has blue tooth built into it. i just purhcased a Treo700wx and i want to use the blue tooth to synch my info. however my treo doesn't recognize the lap top and vice verse. when i go to my device manger on my laptop i don't see bluetooth listed in there. when i try to connect it says something like bluetooth radio is not enabled.

there is a switch for my wireless and the switch is on and has been on. when i go to control panel and then go to bluetooth, i check the box that says turn discovery on. well when i click apply i get the following message:

Bluetooth Service Error:
an error occured while windows was saving your settings. the following settings were not saved.

discoverability settings
connection settings.


when i go to device manager i don't see anything relating to bluetooth so it seems as if something is missing. Like a plug in or a driver of some sorts.

help

thanks !