Alan Mendelevich reports a bug in both Silverlight 3 and Silverlight 4 when drawing lines with odd coordinate values.
Some pretty strange bug in amCharts has been reported to me. In one scenario user got 3 graph lines when zooming-in deeply on a single line graph.
While investigating this bug I found out that previous data point in that scenario was far apart from the one in view and a line was drawn from that previous data point to the current one. The calculated X-coordinate of the previous data point was something around –89000 in my test case so I became curious if this a little crazy coordinate value could be the source of the problem.