I have a Blackberry Curve 8310 with an Asus Laptop and Vista Business.
Initially connected the phone to my laptop via Bluetooht with no problem but recently the phone and the laptop and the phone do not recognise each other via bluetooth.
I have deleted and unpaired the devices but still they do not detect each other.
The laptop does detect other devices and so does the blackberry
Try clearing out the bluetooth options on the blackberry. To do this, plug your blackberry into the computer, open desktop manager double-click on backup & restore go into advanced scroll down to bluetooth options on the right hand side click clear
then try pairing again. Also it may be worth a shot to reset the blackberry and the computer.
Tell us what the result is. If you have any problems clearing out bluetooth options it could because of the BES (if you are connected to one) and there is a workaround for that.