named: dumping master file: tmp-xxxxxxx: open: permission denied

[Gerry Doris]

I've started getting loads of these errors in my logs on an FC4 box over the 
past few days.  I'm not sure but I believe they may have started after a 
named update???

When I check /tmp I find that sure enough there are many empty directories 
all named tmp-xxxxxxxxx.  These are owned by root.root and have 700 
permissions.  I've been going in and deleting them manually.

How can I fix this?