I can get PT Boat (from Alliance Interactive) to run via DosBox, even get the (very poor) digital voices; but I cannot get the mouse to function in-game. My normal cursor moves around the screen and there is a game cursor frozen in the game screen.

I had a similar problem with Enoid which I cleared up by going fuill screen (though only by starting in a window then using alt+enter, if full screen was selected as a dosbox option the cursor still didn't move). This doesn't work with PT Boat however, alt-enter merely gets me a system beep and the game won't even load if I select the full screen option.

Any ideas on getting a functional in-game cursor?

System is a dinosaur: Athlon 2.4+, 512meg, XP SP2, GeForce4