Labelling not working in 2.0.1?

Hello,
 
I've been exploring my options with labelling a branch of our
repository, and I'm having trouble getting it to work.  First, the vital
statistics.  We've upgraded our Vault to 2.0.1 from 1.2, and I'm
currently using the 2.0.1 client in my attempts.
 
I performed a very simple test.  I recursively labelled a folder in our
repository, then made changes to a file under that branch and checked it
in.  I then went to the file in the Vault client, right-clicked it and
chose Show Labels...  I see the label there, and select it, then
right-click it and choose "Get $/MyDir/AnotherDir/MyFile.cs..."  It
looks like the right dialog pops up, with "Get MyFile.cs - Version 27"
(and the most recent version in the repository, and on my machine, is
28).  I click OK, and in the Messages pane, it says "Finished get latest
of 03a80354-ea41-4c8a-851f-48ad2b7c2bfd/MyFile.cs".
 
But it didn't actually retrieve the file.  Diff'ing the local file
against the latest version in the repository (which is what it was
originally) shows no changes.  What's more, if I go to diff that
repository file from the Label window ("Diff
$/MyDir/AnotherDir/MyFile.cs..."), and keep the default option of
"Compare the label's contents to: The current version in the repository
now", I get a popup dialog that says "File
C:\DOCUME~1\kevin\LOCALS~1\Temp\vault99693fea-40b3-4bd8-8066-afb4ab2a5f0
4\MyFile.cs could not be found."  True enough, that file does not exist
in that directory; though that directory exists, it is actually empty.
 
I'm not sure why it's unable to get that file.  Does anyone have any
insight into this?  From the help files, it looks like I'm doing the
right thing, so please let me know if I've missed steps in there
somewhere.
 
Thanks in advance,
Kevin