named restart error

[ius]

Hai,

This morning when i do "service named restart" i got this following 
error message. But the named is started

service named restart
Stopping named:                                            [  OK  ]
Starting named: /etc/init.d/named: line 49: [: : integer expression expected
/etc/init.d/named: line 51: [: : integer expression expected
                                                           [  OK  ]

and then i check the named status :

service named status
number of zones: 10
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
server is up and running

is there something wrong with my /etc/init.d/named ?

Thanks
ius