Does anyone have any problems shifting into reverse. My car tends to grind like a mother about every other time i go into reverse. The car only has about 18K miles on it. I will be a complete stop with the clutch fully depressed and will go through nuetral into reverse and it will just grind like a b****. And today, for about half a minute, I couldnt even put it in to reverse with the freakin car off, I then turned the car on and just grinded trying to shift. Should I just take it in to mazda and have them look at it?? Thanx guyz.