I have a few quirks I can't figure out.

1.  Sometimes when I dimension the distance of a hole from the edge of the part the dimension will show up as a 90 degree angle rather than the distance.  I can't figure out what exactly I am suppose to click on to get it to show the dimension rather than the angle. 

2.  When I create a view sometimes there are annotations about a hole that are automatically shows on the view.  Stuff like 1/4" hole with a arrow etc.  Why are these annotations appearing automatically. 

3.  Some drawings have lines on them I guess to show the holes are all on the same center-line.  Is there a way to turn these off?