Issue solved. Thanks a lot but may I.......
Thanks a lot for your help. The issue I had with Calibre is solved.
May I suggest that when one uninstalls Calibre, one is given the option to uninstall all files, including the configuration directory?
By the way, where is the configuration directory of Calibre? I would like to know its location so that when I uninstall the software, I will manually delete the configuration directory.
Last but not least, I wish to thank Kovid for his time and effort in creating such a wonderful software for us folks.