For PHYSLET issues:

Be sure to read the instructions on how to make physlets work on your computer at http://www.compadre.org/Physlets/security.cfm

Sometimes the physlets are slow to load!

In some cases, you may need to click a link for a problem to appear, and in others, it will already be loaded - be sure to read the instructions.

Try opening and closing your browser or hitting "refresh".

Let the instructor know of physlet issues that you cannot resolve - be very specific about the system you are using and what issue you are having - and move on!

Thank you and have a nice day.