Hi Brian,

> Just experienced a problem trying to place a point, or a line, when there is both a helix,
> and a square inside it, in a end view. There is a two second delay in placing the point.

That's due to intersection object snap trying to process the projected 2D intersection of the helix, it's a complex case since a projected helix is a highly self overlapping curve.

If you turn off projected intersection snap that delay should go away, more info here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=3699.2

That's on my todo list to try and figure out some way of not attempting an projected intersection on something similar to that, or to make some way to limit how long it tries to calculate the intersection.

- Michael