Is your /etc/rc.bluetooth file executable?
run
Code:
#chmod +x /etc/rc.d/rc.bluetooth
then
Code:
#/etc/rc.d/rc.bluetooth start
to be sure.
Then plug the device back in and try.
It would also help to know what device it is, and what kind of desktop environment you're using.
Also note: if your computer's bluetooth device is disabled in your BIOS it won't work anyway.