Detatched Particle Verts

having an ongoing issue in Particle mode, in that when i move hair strands, the verts/control points become detached. i sussed out that i didn’t have my “Steps” set high enough in the tool shelf settings, but after updating to v2.69 the other night, the prob is back

what’s going on and how do i fix it? it’s really buggering up my work as it gets hard to tell what’s referring to what in some of my more populated ares.