yeah, I tried that option but it did not do anything different. I think the problem lies in the design of the new nebula maps; they are just too blurry, and the increase in the color depth and resolution isn't enough to compensate for the blur. The old ones had the boundary lines between different colors visible, but looked much more crisp at the edges.
There were also two other things I noticed but forgot to mention earlier. One issue is that it is now taking extremely long to switch between some screens in the menus. The ones I really noticed were the command briefing/briefing and main menu/exit dialog transitions. I was trying a mission with a CB earlier today and when I clicked continue, the game stalled for almost 15 seconds before it went into the briefing (during which the music stuttered a bit too). A similar thing happened when hitting esc in the main menu and waiting for the "are you sure" dialog.
The other bug I think has already been documented, but I'll list it anyway just in case. In some missions, the explosion graphics seem to suddenly vanish midway between the animations and then appear again near the end of the animations. So you see the explosion start up, then disappear, and then appear again a second later (dropping any frames that were supposed to be shown while it had vanished). I only had this happen in certain missions, however; not quite sure yet what exactly causes it.