I may have found the cause of the problem. I'm reporting the possible solution here in case others encounter this.
I noticed that when I would launch Krusader with sudo, a .DCOPserver file owned by root would be created in my /home/username directory and, invariably, the ownership of .ICEauthority in the same directory would subsequently change from username to root.
It appears that if I launch Krusader with kdesu instead of sudo, this doesn't happen. Or at least not so far.
Note that I'm not running KDE, though it's obviously installed. Instead, I generally run xfce4, but I do use a handful of KDE apps from xcfe.
Since I didn't make it clear in my initial post, the reason this ownership change is so annoying is that it effectively prevents me from logging in to my desktop environment (either XFCE or KDE) as user. To do so, I have to log in as root and manually change ownership of /home/username.ICEauthority from root back to username.
This post has been edited 1 times, last edit by "clawhead" (May 23rd 2005, 12:56am)