Well not a good start im afraid. (RA 1.6.7 nightly 24/9/17) updated mame2003 core
Couldnt find a working area51 chd/zip combo so had to use area51mxr3k.
Managed to run --verbose and see my mouse#0 1 & 2 HID#VID values in the log output. (Trackpad and 2 usb BT mouse)
With the driver set to raw i get no responce from any mouse with any index combination.
When set to dinput the screen flickers on mouse click but the crosshair is very random and jumps around on click. Invisible on movement. Which is a little odd becauseat 1st run before changing anything the crosshair would follow the mouse, all be it not closely