Daniel Posted a fix in a WordPress.org Forum Here
http://wordpress.org/support/topic/issues-with-35
His suggestion:
“What you need to do to fix this issue is to open functions.php and find this line:
add_filter( ‘ext2type’, ‘minimatica_mime_types’ );
And replace it with this:
add_filter( ‘ext2type’, ‘minimatica_file_types’ );
That’s it; no other change is necessary.”
I tried it and So far it seems to work perfectly.
Cheers!