Linux

If for some reason the default exercise file username (admin) and password (booth) don't work, you can change them in the database itself using phpMyAdmin. (This technique is demonstrated in a video from Chapter 8, "Recovering from disasters".)

Skip Taylor reported on drupal.org:

I wanted to see the video quality so I tried one of the free demo tutorials. There's audio and a green background. I have the latest QuickTime installed and using Firefox 3 with the QuickTime plug-in. Should there be more to this than a green background?

Indeed there should. :) Lynda.com gave him the following steps, which solved the problem:

I had to change a setting in Quicktime 7.5:

The username and password to log in as the administrator for the Drupal Essential Training example site are:

USERNAME = admin
PASSWORD = booth

We mention it at one point in the course, but should have given it more frequently. Sorry for the omission.