That's exactly what I need to do. However, I am still having trouble getting the markers to appear where they should.

I'm becoming convinced that what I want to do is not possible.

I modified my source data but maybe I didn't modify it correctly:

Date	    Single Copy Sales	 Price Changes
		
6/30/1997	37,907	
12/31/1997	34,028	
6/30/1998	30,491	
12/31/1998	32,319	
6/30/1999	39,831	
12/31/1999	38,113	
6/30/2000	36,815	
12/31/2000	40,971	
6/30/2001	42,251	
12/31/2001	40,994	
6/30/2002	41,400	      8/19/2002
12/31/2002	49,513	
6/30/2003	45,154	
12/31/2003	52,783	
6/30/2004	54,446	
12/31/2004	58,305	     10/1/2004
6/30/2005	54,846	
12/31/2005	56,396	
6/30/2006	57,185	
12/31/2006	56,282
My aim was to have the price change dates indicated in Column C.

But when I added a second series of data to my chart I got this:

http://img165.imageshack.us/img165/8...ot00116yb5.jpg

I'm really stumped. This started out as a 10 minute project and I've been trying to get this accomplished for the last 2 hours now. I really don't know what to do.

Am I just screwing up the source data? I'm sorry if I'm being dumb - I just don't get this - it seems like it should be so simple to just add new markers and name them what I want.