Hi Tracker folks,

This update fixes a bug that I introduced in the last version (6.1.4) three days ago. The bug prevented exporting of selected data in the Export Data dialog.

To upgrade, click the green "Now available" button on the toolbar and choose Upgrade Now. If you don't see the green button choose Help|Check For Upgrades.

You can also download installers directly from the Tracker home page (http://physlets.org/tracker/) or ComPADRE (http://www.opensourcephysics.org/items/detail.cfm?ID=7365).

Thanks for using Tracker and thanks to Erwin who reported this bug to me promptly :-)  Doug