Tooltip bug

[snid3ly]

I'm not sure if this is a JFreeChart bug or a swing bug but if I stretch a chart across 2 physical monitors the tooltips will often appear on the wrong screen. In this example I my pointer is on a bar in the left screen but the tooltip appears on the leftmost edge of the right screen. Even if I had chosen a bar further to the left the tooltip would still appear in the same place.