24a25
> static int intellimouse;
60c61
< 	static short msg[3];
---
> 	static short msg[4];
63c64
< 	int buttons, dx, dy;
---
> 	int buttons, dx, dy, dz;
72c73,76
< 	if(++nb == 3){
---
> 	if (++nb >= 3) {
> 		if ((intellimouse) && (nb < 4))
> 			return;
> 
79a84,91
> 
> 		if (intellimouse) {
> 			dz = (char) msg[3];
> 
> 			if (dz) 
> 				buttons |= 2;
> 		}
> 
104d115
< static int intellimouse;