For example, your chart area (not data area) is A1:G10 and your date area is A10:B100.
Click on the cell A10, then select Data, Freeze Pane.
Hope this helps.
2007-07-11 17:20:15 補充:
If you still cant make it by using the above method, go to this web site www.excelforum.com. There are many excel professional there that can help you. You could provide an example file there also.