Right, Thats IT!!!

[EGT]

5) See if you get any kernel panics without the ISDN adapter plugged in.

yep, tried that. Could panics still happen with the drivers installed, but the adapter not plugged in?

I've rolled back to older, but more stable drivers. Still no panics since 1st April, so hopefully the problem is gone.

Also, I only recently learnt about "fsck -f" after a reboot. Maybe that solved the probelm?

 

[caveman_uk]

My understanding is that drivers are loaded dynamically i.e. as they are needed but if you can remove them or use a more stable version that can't hurt.

 

[EGT]

I won't be needing the ISDN adaptor for much longer. I'm getting broadband installed in the next few weeks.

 

[Colonel Panik]

Just off the phone to apple support. Unfortunately, the powerbook is just outside of its warranty (19th of March, bah!!). I didn't realise it took so long to arrive. I didn’t have it until late April/early May!

Don't accept that. The warranty is from when you get the package, not when it was ordered. Find the delivery slip, or some proof of when you received it and phone them again.

I've been lucky with all my Macs, they've all be excellently manufactured. But when you deal with hundreds of thousands of productions, some are going to come out goofy. I've had my share of bad RAM, though, and the common theme with bad RAM is random unexplicable kernal panics.