dolphin icon of a user opens the /home of another user

In my opensuse 13.1 with kde if I click the dolphin icon in the kickoff applicatio launcher it opens the /home of another user.
if I add it to the panel (otherwise I cannot ask its property) and ask the property in the applicatio tab I have this:
it is the same that I have in the dolphin icon of another user that opens its own /home.

furthermore..
if I want to open another folder instead /home/user, it's enough to put "dolphin /folderIwanttoopen" in the icon>propertyes>applicationtab or is better to put also other %things?

manythanks, :-) ciao :-) pier