Whats Wrong: Part 3 - The Transmission

So first of all I don't think this is a problem but it may be one.  Actually it is more than 1 issue.  The first is that I broke the shifter knob right off going into reverse.  So reverse is hard to get into place.  Also when I shift down to 2nd gear grinds a tiny bit.  I don't know if these are problems at all.  It just a couple of concerns that I have about it.