asterisk users - Jul 2004 - Intermittent cidname lookups

I'm having a problem with intermittent lookup of Caller ID Name info 
using LookupCIDName.

The same problem occurs when doing:
	asterisk -rx "database show cidname"
No data is returned on every fourth or fifth query. No errors are being 
logged.

I'm currently running CVS-HEAD-07/07/04-17:04:31 and first noticed the 
problem a few weeks ago.

Is anyone seeing a similar problem?