problem editing

Hey All,

I am having trouble editing in SQuirreL.  If I make a table editable, it 
allows me to click in a cell and make changes.  When I try to save the 
changes, a panel pops up saying

"This row in the Database has been changed since you refreshed the data.
No rows will be updated by this operation.
Do you wish to proceed?"

Clicking yes yields "No rows updated."; no cancels.  Trying to edit using 
the popup rather than in the cell gives the same results.

I don't see any mention of this in the help, or in the mailing lists online. 
  Any ideas ??  BTW, I am running version 2.1 final on a Linux box, and 
attaching to an Oracle database.

Thanks,

Mark

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