graph displays daily but not weekly/monthly/yearly stats

This is strange - starting last week, one of my Cricket graphs stopped
displaying data for the weekly/monthly/yearly graph.

The daily graph continues to show current data collected today.

But all the other graphs show a dropoff to zero at the day the problem
started.

I don't see any error messages in the Cricket logs, other than one
of the datasets being collected returns "U", but that's normal
for this setup, where the data is collected by a bunch of EXEC
scripts and some of the values aren't always available.

I dumped the RRD file out to XML and restored it, and just for laughs
I deleted the Cricket image cache, but nothing helped.  I do see
when looking at the RRD XML that all of the RRAs have recent values.

Any idea how to debug this further?

Thanks,

	-- Ed


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