When I do an "Edit" "All Data" the price for June 15, 2012 is shown as $3.91. BUT on my graph, when I put my cursor on the end of the line at June 15, the price shows up as $4.41, in the lower left hand corner of the graph for the same date. The stock is FTR (Frontier Communications).
This is happening with a stock that I own and have added to and have downloaded dividends into. On the same stock but that hasn't had any distributions or purchases, it is shown correctly.