Can't find teeChart's chart.pas in Delphi 4 compile

I started a new application, and dropped the Chart component onto a form. I
was able at design time to edit the chart, setting up line series, title,
axis, etc. Then I tried to compile. And it claims that it cannot find
chart.pas. I checked the Lib folder and chart.dcu is in there, and my
environment lib search path checks there. So ... any ideas.

David Bakkom