I can now see how pathetic my hardware is... when Mission 4 ends and you can see the interesting details on the flightdeck... several of the animated "things" showed up as pulsating rectangular solids L-O-L! I'm guessing they were fires!
This sounds like the transparent texture didn't work on your GPU. Do you use OpenGL or DirectX mode? Did you update your GPU drivers? I had a lot of issues on my subnotebook until I updated my drivers
Btw, you should really consider installing the asteroid fix, it speeds things up a little.
Now, what if you moved a bunch of the com chatter into the time flying between navpoints? The way I see it, that would kill two birds with one stone, and would also make sense. I think that pilots would mainly chat during the long, dreary parts of the missions anyway.
That would be a bit unpredictable. The 64x time compression can cause severe problems (see asteroid issues on low end computers). Unless there will be a code solution: it is possible, however very tedious, to use cutscene SEXPs to achieve the flyby effect, then reset the position of al ships involved.
But the problem is that I can't find them in my system32 directory. I'll try looking again though.
I could upload them for you if you have a 32 bit system