I received a server error and would like to more detailed information

Server Error

An error occurred. See the error logs for more information. (Turn debug on to display exception reports here)

How do I 'turn debug on'?. I am using the public galaxy instance http://main.g2.bx.psu.edu/

Thanks,

Peter Andrews

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Peter Andrews
Programmer
Computational Genetics Lab
Dartmouth Hitchcock Medical Center
(603) 653-9963