First, i apologise for my bad english because this is not my first language (i speak french).
Second, i have a problem ...Mister Houston ...
I have windows 8.1 and a track ir 3 pro vector expansion. Yesterday, everything going very well but today nothing works.
I have to reinstall win 8.1 for zero (official oem license, not a pirate license), all drivers (graphic card, mother board, and all of kind of thing) and then the software 5.3, or 5.4 crash every time when i try to activate vector expansion. Then my trackir does not fonctionnal...
I hope, i explane my self well enough

Please, if the god of airplane simulation pass to here ... HELLLLLLLLLLP me Please ...