Strange Beahaviour landing the A380 PA with vasfmc and FBW

[Jompar]

Hello, I've notice in some flights, that after a long time flying, between 20 minutos and 2 hours, the aircraft makes really anoying the control to land.
I spend the final approach fighting with the stick against the compute, this doesn't happens if I just take off and I go back to land 5 or 7 minutes later.
Here I have recorded two videos with the problem:
At this you can see the problem at 3:30, also notice that the fd indicator is wrong comparing it with the ils indicators which are right.
http://youtu.be/T-B6ihRRKcM
Here you can see the final approach from the tower. As you will see, the plane's behaviour is weird
http://youtu.be/2fUV1RHXx74

Does anyone knows what can I do for avoiding this trouble. I think that I tried to reinstall the airplane without results. I am flying on win 7 64 bit.

[Jompar]

I've corrected the first link, now you will see it