thanks again. So yes, will tackle content server next...
In case anyone else ever reads this post, uninstalling calibre and starting over was not as easy as it seemed. But found some code here to uninstall calibre
http://ubuntuforums.org/showthread.php?t=1315555
and then about deleting protected files with sudo nautilus (the above did not get rid of many files) here:
http://www.youtube.com/watch?v=k3aPkRe5L8w
then reinstalled from
http://calibre-ebook.com/download_linux
using the binary code in terminal.
onward... and thanks Aleyx! this forum rocks.