Popup: Filesystem not responding

Every few minutes I'm getting a pop-up alert complaining about one of my NFS systems not responding. This system is automounted from a NAS and used only for backups, so normally its disks are spun down. If I run an 'ls' on it it wakes up correctly as it should, but for some reason Plasma thinks it's dead. Before I changed from a hard mount to automount this never happened. How can I get Plasma to shut up about it? poc