Nokia 6660 - call log problem?

My wife has noticed with her Nokia 6600 that on occasion the log application appears to stop saving a record of calls - even when the log duration is set to the 30 day maximum.
Clearing the log helped - it is this a bug?

Are you giving the phone a couple of minutes to load the log?

It can take a while for 30 days worth particularly if there are lots of SMS's.

[Siddharth]

The Problem happens to me too.... my log duration is set to 10 days.

i clear all the log and than again it functions properly.