It's been discussed a fair bit, I myself searched for a solution to this a while back. You have to modify your *.cam files. In the line pertaining to your used view (for me it's Cockpit) in the line with "ClipPlanes" set the value to .205000 or thereabouts. The flickering is most noticable when the values are quite low such as .002 etc, so generally higher=less flickering
EDIT sorry I ...



