When I first installed PCLinuxOS in July my Bluetooth adapter was recognized properly. After a while I always had to manually switch it off and on again to activate it after booting my laptop.
The next time that should happen, please verify if the daemon bluetoothd is running: from a terminal type
ps -ef | grep bluetoothd
if it is not running, try to launch it:
Which was annoying but at least it worked. Since yesterday switching off and on causes kernel panic and my Bluetooth adapter is not recognized after booting
try to look in /var/log/messages, /var/log/syslog, /var/log/dmesg, /var/log/dmesg.old for panic log messages ...
Also, instead of switch bluetooth on/off, try to install and use rfkill