Graph with time gaps

In Excel 2003, I created a table of blood pressure readings beginning in November, 2008 through today (Col A = date; B= Sys; C= Dyas; D= HR). I missed some days, so there are gaps. When I try to chart the trends over time, the Wizard creates a chart that begins in November, 2008 but continues through the entire 2009... which compresses the relevant data and leaves a lot of blank space. So far, the "Help" feature hasn't been much help.

Beautiful! Thank you, Andy.

Cheers!

Beekeeper