I have seen this is several customers, and even in my own lab. You might find the following alerts (below) stemming from the DNS MP. This appears to be a random issue with WMI that causes this when trying to access the WMI based DNS namespace, and query
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Read the complete post at http://blogs.technet.com/kevinholman/archive/2009/06/29/errors-alerts-from-the-dns-mp-script-failures-wmi-probe.aspx