W-key not responding again

[Dion]

I was playing a random battle, I was Cuba and playing against Saudi Arabia, in September of 1976. I had a man portable anti-tank weapon that I couldn't get to fire using the W-key. It would fire in combination with all the unit's other weapons turned on, but I couldn't get it to fire individually, even if I turned off all the other weapons. I noticed this happening with other weapon systems from other nations too, over the last year or so. It seems to work correctly sometimes, but not all the time. Should work all the time. Should be real simple to use. Shouldn't be any problem.