OK, I've been playing the original X-Wing with DOSBox 0.65, and it works well (although with a low frame-rate sometimes).

But I tried it with a later CVS build with all the knobs and whistles (D3D, menu, etc). And the joystick no longer works right.

At least I think it is the joystick. The mouse and joystick both control the ship, and both control the cursor.

In the dynamic core, it drifts up and to the left (I think that was the direction, I can't remember exactly). I then press Alt+C to calibrate the joystick again in-game, but the same problem still occurs! It also drifts in that direction in some of the other cores, but less so. In the normal core it doesn't seem to drift, but there is no dead-zone.

In DOSBox 0.65 there is a significant deadzone and it doesn't drift. I can't remember whether there was a deadzone in the original, I'm guessing there must have been, but I know it didn't drift.

I can't find the place I saw it on the internet though. But if someone wants to test with this game I can email them a copy for testing purposes only. Anyway it is the very original 320x200 DOS only X-Wing game, with the original B-Wing expansion pack (but not Imperial Pursuit).