ASP.Net Chart Control not displaying chart image

Phew! Managed to solve this myself. I wasn't setting the control up correctly, so I made these changes and it worked:

1. Removed this from the asp.net page

   <%@ Register assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" namespace="System.Web.UI.DataVisualization.Charting" tagprefix="asp" %>

2. Removed all web.config settings relating to asp.net chart

3. Removed the control from the page

4. Dragged the control on to the page in design view

5. Configure the chart control

6. Added a row to AppSettings in the web.config

   key="ChartImageHandler" value="storage=memory;deleteAfterServicing=true;"

7. Added a row to httpHandlers in web.config

   path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"

Hope this helps others in the future