Seems like this is a Kanaka Problem
It would seem that 10.4.7 on a g5 processor works ok, but not on an Intel processor.
On my desk I have two intel macs with clean systems, that crash when I log in via kanaka and run mail.
It does not crash instantly, but after reading a couple of emails, extracting attachments is a very effective way of killing Directory Services. Each time there is a %50 chance of completely screwing your mail folders and configuration.
I have 2 g5 based macs that dont exhibit this fault until upgraded to 10.4.9
Reformatted and with os 10.4.7 installed they work fine…
I need a souloution for Intellimacs
l.