No, I don't have that problem with the AN225 in particular, but I have encountered it before. When I was flying the A330 at Male Int'l, I touched down a bit too hard and the nose gear just sank into the runway. On the return flight (which didn't get into the air), just as I loaded the fligth sim the nose bounced up, down and went into the runway. This same occurence has happened to me before, and when I get into the air and put up the gear the nose gear just stays there, it's non responsive. Any ideas, anybody??