An update: I had this same issue and after trying all of the suggested fixes here, in desperation called Apple "support" and for an hour tried everything the "technician" read from his book of help. He had not heard of this issue, and laughed when I said I had bought the MB in the USA (I now live back in Australia). He commented maybe it was a terror plot -- was a jerk, and showed no empathy whatsoever.
Anyway, he gave me a case number and I took it in to the local Apple warranty place -- they had it a week but could not get it to replicate what had been happening -- so I took it back and within 30 minutes of turning it on, lo and behold, the BT was missing in action again.
I gave up and bought a plug-in Mighty Mouse.
Since I updated to the latest version of OSX (10.4.10), the problem has stopped. I have now had 1 week of bliss. I don't know if this is sheer luck, and it may return. For now I am happy, but I wish I knew what was causing this -- I understand the frustrations that anyone who is experiencing this is having.
Cheers
Kim
I have the "Bluetooth: Not Available" problem on my
MacBook with BT going in and out like a fiddler's
elbow. I have tried all the fixes posted here and
none has worked. At first it was only a minor
inconvenience as I had no BT devices. I worked around
the no sleep when BT unavailable problem by using the
Deep Sleep widget, which put my MB to sleep even when
BT was unavailable. But a week ago a relative bought
me a BT mouse as a gift and I would like to be able
to use it.
I have always thought this problem is most likely a
software issue, mainly because I have seen the same
thing on G5 desktops, and have heard that it happens
on PBG4s. However, I now think this is a hardware
issue.
I have Windows XP installed on my MB and thought I
would try my mouse with that system. I reasoned that
if the problem is software-related it should work OK
under Windows. Well, the mouse was detected OK and
worked for about 30 seconds but then it vanished just
like it does under the Mac OS. Nothing I tried would
find it again.
My warranty expires in 2 months and I would like to
find out for certain whether or not my hardware is at
fault.
I do not want to be without my MB if I can help it (I
was without it for 2 months late last summer due to
RSD) but I would like to have a reliable BT
function.
Does anyone out there agree that the fact that
this also happens under Windows means it is more
likely to be a faulty BT module than a software
issue?
For the record my BT has switched between available
and unavailable 5 times whilst writing this! It is
now stuck at unavailable.
MacBook White 2GHz, 1.25Gb, 60Gb
Mac OS X (10.4.9) Titanium PowerBook
G4
MacBook White
2GHz, 1.25Gb, 60Gb Mac OS X (10.4.9)
Titanium PowerBook G4
MacBook Mac OS X (10.4.9) Video iPod 30GB, Apple iPod HiFi, 20" Cinema display