>>I actually do not know what it does, but we discovered it by accident in the remote view wizard. The wizard was putting the () in sometimes, so we tried it. Un fortunately as I answered Naomi, I cannot recall the exact errors it solved. I remember it was a epiphany type event, we had been struggling with the errors for weeks, and they all went away with the ().
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>Neat... and I have the same habit of forgetting about which errors something solved, just as long as they don't reappear. If they do, I'm looking for the nearest wall to bang my head on, even though I've empirically established that it doesn't help to refresh memory.

() didn't change the parameter's type, so it was not a solution for me.