I am trying to repair my permissions using the Disk Utility ap on OSX 10.3.9
It runs for only a few seconds when I get the notification
"Disk Utility has lost its connection with the Disk management Tool and cannot continue. Please quit and relaunch Disk Utility."
What might be the cause of this error?
Actually, I just found the answer.
Upgrading to iTunes 6.0.4 has caused the problem. It is stated on the Apple site:
Mac OS X 10.3: Repair Disk Permissions "Disk Utility has lost its connection with the Disk Management Tool..." alert
After installing iTunes 6.0.2 or later in Mac OS X 10.3 through 10.3.9, Disk Utility's Repair Disk Permissions may not finish, and the following alert appears in the Disk Utility window:
(Quitting and reopening Disk Utility does not help.)
Workaround
Quit Disk Utility.
From the Finder's Go menu, choose Go to Folder....
Type the following, then click OK: /Library/Receipts
Temporarily remove these iTunes receipts from /Library/Receipts (sort the folder alphabetically as a list):
iTunes.pkg
iTunes4.pkg
You can put them on the desktop, for example. Do not remove iTunesX.pkg or iTunes Phone Driver.pkg.
Open Disk Utility and repair disk permissions again.
Quit Disk Utility.
Put the removed iTunes receipts back in /Library/Receipts.
Note: This issue does not affect Disk Utility's verify or repair disk features.
http://docs.info.apple.com/article.html?artnum=303132