I just started working with jqGrid. First of all, I want to say that it is rare to find such extensive documentation for an open source component. Thanks so much to whoever has done all this. In working through the tutorial on the this page:

http://www.secondpersonplural.ca/jqgriddocs/index.htm

however, I had to make a couple of changes to get it to work for me to retrieve data from the database. I found these problems using Firebug in the Firefox browser on an Ubuntu Linux LAMP VM using the latest downloads.