Didn't have that problem today but i did last week.  No help from the "new" Merrill though.  The best advice given to me when I asked the same question was to close out at the end of the day or just keep your stops to yourself and enter them a few minutes after the open each day to avoid this exact situation.  I was watching the TS Matrix yesterday and saw the same thing happen to someone else.  Quick drop to pick up some stops at the open then right back to the close from the day before.  Some specialist is making money doing that at our expense.