. I checked the savefile I ordinarily use and the links from CUPS work fine.500 Internal Server Error
Update: I created a new savefile ,installed my printer then printed a test page - ok.
Then I installed Google Chrome from the Google Chrome download page. Installed and ran chrome. Went to http://localhost:631/ ok but got 500 Internal Server Error when I clicked on Admin, Help, Jobs and Printers.
Uninstalled Chrome and still get the 500 Internal Server Error.
It would appear the Google Chrome interferes with printing somehow