Problem is still there. I've been running windows 98 / first edition and thought that might have cause the troubles, but now under windows XP the problem is still there.
Elevator axis feedback is correct (near 0 when otr, increasing with airspeed). Works nicely.
Roll axis feedback can be anything. I think it just isn't getting updated too often. On the beginning of the first sortie after startup it's usually zero, when flying for some time set to a somewhat appropriate feedback value in that situation. On later sorties roll axis feedback otr is what it was at the end of the sortie before.
note: i disabled center forces in ff-games, otherwise probably wouldn't feel that something is wrong