Mac's name changed to "machinename" on its own

Question

Hi all,
Ever since I got my Mac Pro at work it's been called njintelmacpro. The other day, out of the blue, it's called machinename. In the sharing system preference I get this:
Other Macintosh users can access your computer at afp://10.32.53.127/
and then a second later it changes to:
Other Macintosh users can access your computer at afp://machinename/
The name in the Sharing System Preference is njintelmacpro!!
From the same dialog:
Other computers on your local subnet can access your computer at njintelmacpro.local
When I do a "set" in Terminal I get this:
HOSTNAME=machinename
Now, how is it that the Sharing System Preference says njintelmacpro but the name of the machine is "machinename"? It's driving me nuts.
Is it getting the name from somewhere else? Thanks.

Answer 1

Not sure of this of course, but I think something is kicking out a process, then it come back with the default when it can't read/do whatever it is... logs may show something.
Might try logging out and back in to see if it changes... or create a new user for a test.
At this point I think you should get Applejack...
http://www.versiontracker.com/dyn/moreinfo/macosx/19596
After installing, reboot holding down CMD+s, then when the prompt shows, type in...
applejack AUTO
Then let it do all 5 of it's things.
At least it'll eliminate some questions if it doesn't fix it.