how to clear resolver cache?

[online-reg]

Hi All:

Bind 9.5.0-p1 on Fedora...how do I clear the cache?

I updated a FUBAR MX record at godaddy.com's NS, with a TTL of 3600. My 
local BIND seems to be caching the record after I updated at godaddy. When I 
query the upstream NS that the local server uses, it returns the updated MX 
record, but when I query localhost, I still get the old record.

I tried all of these:

rndc flush
rndc reload
/etc/rc.d/init.d/nscd restart

Where else would the old MX be cached?