I just spent the last couple of hours retyping in Captions and Comments for a table with 180 fields in it after having it trashed in the Table Designer. Apparantly after moving a field either with the mouse or using CTRL+UPARROW to move a field did something that caused all empty captioned fields to be populated with the caption of another field in the table. I moved around to other fields and they were fine. Then after saving the table and re-opening it all of them had been set to the field caption that was getting copied to the blank one.

Not a cool thing! Has anyone else ever seen this behavior before or is it new to SP3?