Tutorial / 500 Internal Server Error

[Dave Stone]

Thanks for the reply, guys, but I don't understand why you're asking for
these details; are the error messages not being generated at your end, by
your Apache/MapServer?

What I'm doing, typically, is clicking on a link to an example (1.8, say) so
the URL I'm trying to access is:

http://hypnos.cbs.umn.edu/cgi-bin/mapserv.exe?map=/ms4w/apps/tutorial/htdocs/
example1-8.map&layers=states+states_label+modis&mode=map

The page displays OK except for the map, which shows as a small icon; when
this is clicked, the following error appears:

"Internal Server Error

The server encountered an internal error or misconfiguration and was unable
to complete your request.

Please contact the server administrator, root at localhost and inform them of
the time the error occurred, and anything you might have done that may have
caused the error.

More information about this error may be available in the server error log.
Apache/2.0.54 (Gentoo/Linux) PHP/4.4.0-pl1-gentoo with Hardening-Patch
Server at hypnos.cbs.umn.edu Port 80"

This looks like your server, so checking our error logs would be superfluous
surely?

What has me really confused about this problem is that up till March 9th, I
was working through the tutorial without any problems, accessing all the
example files on your server AFAIK.