Pixelbugs - alignment problems

Hi everybody,

I am wondering if anybody knows the answer for this. I created a chart which is loading all the data from an xml. All the lines are drawn using flash api.
There is one thing I don’t understand. Please take a look at the image. The slash (I mean that short line) in some points is not aligned with the vertical grid line (for better visibility I put it black too). There is obviously 1px difference. Points 5, 10, 15 are ok but 20, 25, 30 are not aligned. It always happens only for points larger than the middle point in chart. The grid line and the short “slash” at the axis are created dynamically, have the same linestyle and same _x. There is no mistake in the code, I am sure in that. If I zoom the movie in you can see there is absolutely no difference, the slash is aligned with the grid line. It actually bothers me pretty much, did you have some similar problem? Any solution for it? Any comments appreciated! Thanks!

P.