I'm not having any issues with VPA 3.67 in this game.
CTRL_ U,V and W work fine for me as intended.
I've been playing with that since Quapla released it and have never had trouble.
Maybe post your trouble here:
http://www.circus-maximus.com/forums/vi ... 382&t=5199
And ask Quapla to take a look at it?
You can look over here on how my DosBox and VPA are configured:
http://www.circus-maximus.com/forums/vi ... 382&t=5383
Only change I made since then is to switch DosBox from "output=surface" to "output=ddraw" as the previous was slow and gave graphical glitches.