Win7 just installed a boat load of updates "for me" this week and since then I've noticed two things.
First, there can often be a huge lag from the time i press a key or a mapped button on my stick and the time the game reacts to it. Not only has this made typing in the text buffer difficult, but it is affecting all of the functions I have mapped to my X52. For example, I'll pull the trigger and the game will continue to fire for a full 3-4 seconds.
Secondly, I have an issue where my TrackIR loses it's hot keys. I am unable to center or pause in or out of game, it's like it forgets. What is interesting is that the problem only arises when im in AH. It won't appear until then.