Can you please list step-by-step what you are doing when this happens, so we can replicate the error?
Edit: I'm going to delete all responses that say "yeah I have this too" without giving any detail. It doesn't help with figuring things out you guys...we want to report stuff to be fixed, but we gotta have specific details in order to do that. The coders have to be able to REPLICATE the glitch before they can find what is causing it.
If we don't know the steps you are taking when this happens, we can't pass the info along.