sounds like a file version error or an upgrade error, try using the install cd and running disk utility from there. Then download and run the 10.3.9 combo updater. Everything should be ok. John On Jan 24, 2006, at 8:40 PM, Bob Hasselbrink wrote: > Hello, > > I have a 550 Ti-Book with 10.3.9 installed. > I repair permissions after installing software and just about > anytime things seem to be acting a little more strangely than usual. > > When I tried to run the utility a couple of days ago, it seemed ok > for the first two minutes or so but then up popped a dialogue box > stating: > > Disc Utility internal error > > Disc Utility has lost its connection with the Disk Management Tool > and cannot continue. Please quit and relaunch Disk Utility. > > Of course it repeats over and over. > > Tech Tools found no problems. > > What did I screw up this time? > > Many Thanks > > Bob -- This message transmitted on 100% recycled electrons.