I've finally started to come to grips with the 707, and decided to try my first long-distance flight today.  The flight itself went well, until I was coming in for approach.  

Shortly after capturing the localizer, my windscreen went completely black, as if the textures had suddenly changed.  I ended up having to land the plane from third-person view, as I couldn't see outside.

This happened roughly when the A/P intercepted the glideslope, but I think that may just be a coincidence, since it didn't return to normal after I'd shut off the autopilot and touched down.


EDIT: Perhaps related but perhaps not, on nighttime flights, I've noticed black, flickering bars and polygons that flash across the screen.

Haha!  Yeah, I suppose you're right, but on my first landing with this bird, I had my hands full already! 

Here are my specs.
CPU: 3.2 ghz Pentium 4
2GB RAM
ATI Radeon HD 4650 (1GB)

I can run FSX with the settings cranked up and still have acceptable FPS.  I don't think the video card is the problem.  Granted, I get blurries due to a lack of system RAM, but that's a separate issue. 

I'm thinking that this was a one-time thing, though the black flickers when flying at night have shown up several times.  (And only from within the cockpit, oddly enough.)

Hopefully it was a one-time thing.  I plan to do some more flying today, so we'll see.