routing table

[David Richards]

hi
   today i was trying to change the default route and recieved this error
darklands# route change default 194.73.89.1
route: writing to routing socket: Disc quota exceeded
change net default: gateway 194.73.89.1: Disc quota exceeded
darklands# 

then i checked the quota root and i got this
darklands# quota
Disk quotas for user root (uid 0): none
darklands#

why did it tell that my disc quota was exceeded. This is in 4.2-release

any ideas

regards 
david