Version:            (using KDE KDE 3.5.0)
Installed from:    Unspecified

Instead of only showing the message "You don't have permission to ..." when trying to read and/or write where you don't have permission (this would apply with kate and others kde tools) It could be REALLY interesting and USEFULL, if you're prompted a LOGIN box, where you could enter the user (and his password) that HAS the authorithy to do that change.

This would really be awesome, since will be really easy for a newbie edit your configuration files while he is logged in as normal user.