InternalWaitOne and CPU usage

    I'm profiling an application that's multithreaded. ANTS Performance Profiler shows that 79% of CPU time is spent on a System.Threading.WaitHandle.InternalWaitOne() call. This call however should not use CPU, and I would like it to not show up in the call tree, as it makes it difficult to analyze the rest of the calls that do use CPU.
     I've used another profiler that let's us ignore those calls, and it reports the cpu usage the way we need.
     Is there a way to tell ANTS Profiler to ignore those type of waiting calls? I've seen a couple of messages regarding this same problem in this forum, but no answer. This problem is quite annoying.

We're using Redgate ANTS Performance Profiler

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