crashes with bad return code ...

My computer suddenly crashes with no sign of warning. I
didn't install anything new. It happened when I tried to
reboot it. Under the safe mode, I see the following errors
in the Event View.
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The COM+ Event System detected a bad return code during
its internal processing. HRESULT was 8007043C from line
44 of d:\nt\com\com1x\src\events\tier1
\eventsystemobj.cpp. Please contact Microsoft Product
Support Services to report this error.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

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Any input is welcome!