I have recently setup a dual boot windows 7 /Ubuntu 13.04.
Problem: I installed eclipse from the Ubuntu software center. Eclipse opens fine, but when i attempt to access the help i get a "server error 500"..
What i know: the help file is located locally and read via the browser..
nb.. novice linux user, happy to try anything to provide more data, ppls just be specific (ie assume i know zilch..)
update jun 30th..
Although not an answer to this question, i have patched a working solution by removing the version of eclipse supplied by the Ubuntu software center and installing from eclipse.org.. details at http://ubuntuforums.org/showthread.php?t=2157452