This usually works for me.  From the inside view, use the A key to cycle all the through once or twice.  Then move to the outside view (I think the wing is first).  Again, use the A key to cycle through.  Repeat if necessary.  This is a very odd problem, and one that I have decided will never be fixed.  I even switched to a Creative sound card from onboard and it didn't make any difference.

I should have added that it may take several cycles of the outside view to get this to happen.  Sometimes I just cycle through six or eight times as fast I can.