I'm getting inconsistent results when I change the scrollbar property on my forms using Datasheet View. On some I can't get a horizontal scrollbar to save my life, but I have at least one that does show a horizontal scrollbar, so I know it can be done. All of these datasheet forms are embeded in subforms. It is very awkward to not have this. The user must click on a visible field and tab over to the the hidden one.
Please ask if you need more info. I can't upload the database, but I'll be happy to provide more information.