Here's how you reset kde4 dolphin settings:"Just remove settings file and restart dolphin--"
Every time I turn around, it seems I've inadvertently changed some of the KDE desktop goodies, and the GUI's are not really forthcoming with "reset to defaults" options. It seems the place to look to find offending
rc files is
~/.kde/share/config There are just so many
kde/ & .kde/ & /kde4 directories scattered around the file system that I didn't know where to start. It's the hidden file in your home directory.