C# Queue being accessed from 1 thread.

[xMetalDetectorx]

I have a Windows Form application that has a static Queue collection. At some point, i kick off 1 Thread and dequeue the Queue in it.

//inside Thread
while (myQueue.Count > 0)
{
   obj = myQueue.Dequeue();
   //process obj
}

My problem is that it doesn't properly dequeue after the first myQueue.Dequeue (). So if I only had one object in that queue, the loop would iterate twice. Why does it do that? Does it have something to do with the fact that I am dequeueing in another thread?

[Plater]

If only one object was in the queue, it should check .Count>0 twice, but should only enter the loop once.
Are you sure it is entering the loop even when the while condition is false?