First, many thanks for coming to the site. The authors of this site have created EMEDU.org to serve as another resource for medical education. This site is far from perfect and certainly has a few bugs. If you would take the time to email us and let us know what problems you've experienced, it would go a long way to making the site better. Below are some common issues... 1. Bad link: This site is currently undergoing extensive revision and many components are being edited for improved visualization. This is especially true for the ultrasound material as this content is being modified for improved performance. 2. Movies won't play: Please download WindowsMedia Player and Real Player Basic. They are both free and non-toxic and will run on most machines. For Real Player Basic look for the link carefully at the bottom right corner. It is there and it is free, but it will take a click or two of investment. 3. Content issues: Please let us know