GC metrics for plugin not rolling up

I've noticed that the metric values for my home grown Grid Control v10.2.0.3.0 plugin have not rolled up. This has the effect of only allowing me to see the last 24 hours of metric values. I've verified this is the case from the output of this query against the GC repository DB:

SELECT
        target_type, count(*)
FROM sysman.mgmt$metric_daily
GROUP BY target_type
ORDER BY 2 DESC; Before I file an SR -- anyone have an idea of where to start troubleshooting this? So far no luck in the manuals, Google, nor Metalink.

TIA,
Rich

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