Has anyone seen my Bluetooth Module?

I upgraded my PB G4 1.25 to 10.3.3 a couple of days a go. All seemed ok until I noticed my Bluetooth status icon in the menu bar, was showing "unavailable".
The Bluetooth pref pane in Sys Prefs has gone, and the Sys Profiler shows no Bluetooth module present!
No idea what to do apart from checking all permissions etc, to no avail.

I know some bluetooth problems have occurred following OS upgrades before, but can't find any solutions. Any ideas anyone? Total Panther reinstall would be a real pain.
Also my Classic apps are now crashing at least once an hour.

15" PBG4/1.25GHz/1GB

 

Thanks dude, but all I get is:
"This computer does not have a Bluetooth module installed..."

Despite the fact that I DO! and it has been working JUST FINE until 10.3.3!

Aaaaaaaaaaargh!!!!!!!!.............

 

Much thanks Koodauw.

As a confirmed Techtool/Norton/general 3rd party kinda guy, I've (foolishly) never actually ventured into the entrails of the Apple Hardware Test app.

Following your blindingly obvious advice meant that my Bluetooth module has been found safe and sound, cowering behind the fridge, biting its little digital nails, squealing "keep that big black cat away from me!"

Still mystified though.... As so often happens, no errors found, no explanation, no nothing, just hey presto!

Thanks again dude.

PS to Westside Guy: Can't have been my little guy... he's far too young to travel on public transport by himself. Must have been some other poor confused sucker's....