Are you sure that the database you're looking at in notes is the same one that you're looking at on the web? I've done THAT a time or three.
Make sure that the selection formula (or column formulas) don't use '@ClientType'.
You might try creating a new view that shows all documents (Select @ALL) and see if documents show there.
You did say that the view does not have the 'Hide from web Browsers' property set.
I have had to delete and recreate views a time or two to get it to work right, but I don't recall ever having this particular issue...