Display Problems in FS9 (2004)

Howdy,I don't know if this is the correct forum for this, however...I have been using FS9 for some time now and recently have been getting disturbing display problems and I was wondering if anybody else has seen this.The first problem was that when I viewed an aircraft from the exterior it was as if the fuselage was completely invisible. You could see right through the aircraft. Portions of it would flash on and off.I have also noticed a flickering of ground and buildings when viewing them from the exterior of the aircraft.None of these seem to happen when viewed from the cockpit.Thanks for your help.Greg