I Emailed Andy regarding this, however, he says the ID is fixed and this is a MAME issue?...
Basically, every time I unplug the AimTrak, reboot PC and plug AimTrak back in again the gun ID changes in MAME (Gun 2, Gun 3, Gun 4 etc.)
Obviously this is a pain in the backside, as I have to reconfigure MAME and all of the light gun games.
I tried making the .cfg folder & files in MAME read only, however, this makes no difference.
Does anyone know how to fix this issue please?

Thanks