i apologize for the pdf (my sorry version of the zachar.gif) but i find that visual inspection of the data is under-appreciated. i hope this is a low bandwidth method of preserving my charts. tim __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com