I have noticed during the last day that I am getting stuttering inside space stations for the first time. I sometimes previously had the occasional stutter when it was obvious that the game was downloading situational data from the server (entering station, detail level changes as I approached planet, etc.) but those seemed to clear up, this stuttering/juddering inside stations is new to me.
EDIT> Oh yes I forgot, I have had three occurrences in the last few days of complete freeze, something like "display driver stopped responding and has restarted" sort of thing, black screen, flashing screen, horrible mess.