There may be a key conflict between IL-2 and TrackIR. I can't think of what could be using the "home" or "end" keys in IL-2. But, just in case, test it out using different keys, and see if the problem remains.
By default, the "Home" key is used for "move pilot head backward" in IL2.
The "End" key is used for "move pilot head right" in IL2.
These are the only key "conflicts" that I see.
However, those "conflicts" did not cause any problems in RoF. I did not want to eliminate default functions because they are used to position the view, when saving views. In fact, I am wondering if it is even possible to save views in IL2. If not, this would be (another) huge step backwards.
If any or all of you feel these conflicts are the cause of the problem, let me know. S!