Yes, I was just about to post the hole size vs the symbol size issue (see attached....same holes, just changed the diameter from .25 to .125").
Sure seems like a bug for sure.
Bug report has been submitted.
Scaling views up and down just to insert this (or any other affected) symbol is an unacceptable workflow as one can guess.
I have had the same problem for quite sometime now, and I have found a work-around that is a little easier to swallow. The snapping problemseems to only occur if you try to snap to the center upon insertion. If you insert the symbol into empty space first, then move it using the green grip, it will snap to the center, no problem, one small extra step. At least it works in Inventor 2011.
Hopefully this bug gets resolved!!