I developed a Flash Player swf application with Flash Builder 4.7 (64-bit) before and it has worked well before Flash Player version <= 16. Recently, I updated to Windows 8.1 with Internet Explorer 11 and Flash Player 17.0.0.134.
It is strange that stageX and stageY in MouseEvent.MOUSE_WHEEL gets the position of the whole web page other than that of swf stage, But it works well in Windows 7 with FP 17.
Another problem is BitmapData.setVector() doesn't work normally when the DPI of screen is set to 125%, even in Windows 7 with FP 17, but it works in FP16 before.
By the way, it is interesting that all the above works well in Firefox with FP 17 even in Windows 8.1.
Does anyone encounter this problem? Is there some workarounds on that?