I've reworked mouse handling in Wing1 to work the same way as it does in SM1 and SM2; let me know if this fixes your issue.1. Occasionally (and very frequently when using a keyboard key, and even more frequently if holding one down such as Tab) the mouse cursor will momentarily jump to the top left of the screen, causing your ship to turn up and left even if you're using a joystick. It appears what's happening is the mouse is jumping to unscaled window coordinates, as if it was only in a 320x200 window.
This should be fixed now.3. The mouse is not contained to the game window, so if you play with a mouse on a multi-monitor setup you frequently click outside of the game, minimizing it.
This should be fixed now.4. Occasionally, alt-tabbing out and back causes the window display to be lost forever (stuck on black or the previous frame before switching)