Mistershine on 19 February 2009
DPC is Deferred Procedure Call:
From Wikipedia-
A Deferred procedure call (DPC) is a Windows operating system mechanism which allows high-priority tasks (e.g. an interrupt handler) to defer required but lower-priority tasks for later execution. This permits device drivers and other low-level event consumers to perform the high-priority part of their processing quickly, and schedule non-critical additional processing for execution at a lower priority.
As it is I've just founf out its the batteries that cause the problem.
