An implementation of Visual Basic that is built into Microsoft products.
Well, I figured out my problem! I didn't realize it, but all the controls on the form where set to .Visible=False! Only Datasheet mode was allowed, so never noticed this. This didn't affect the columns from displaying on the datasheet, but apparently it prevented the columnwidths from being changed. I made them visible and now I can change the columnwidths. Go figure! (There's a few hours of my life I can't get back!)