Thread:Project:Support desk/MediaWiki 1.23.5 looking for files/directories names with initial capitalized letter

My new MediaWiki 1.23.5 is looking for some files and directories whose name begins with a capital letter.

It began looking for /Index.php (with an initial capital letter). I fixed it with adding DirectoryIndex index.php to my .htaccess file.

I now find it is looking for images in the /Images directory (again beginning with a capital letter), whereas the files extracted from the gzip, and the installation is in small letter, ie. /images

I've tried removing my htaccess file (no change), but if I remove index.php, then it correctly can't find /index.php, instead of looking for /Index.php

Any suggestions?