Created attachment 58224 [details] [Line] dialog [Arrow Styles] tab Arrow style symbol that are new to version 3.5 is not correct. For example, arrow style "Triangle unfilled" select, which should be white triangle. But real style symbol is double black triangle . Please see the attached image capture.
[Not reproducible] with "LibreOffice 3.5.2 - Windows Vista Home Premium (32bit) Spanish UI"
@Akira: You have to reset/delete your LO config folder. It worked for me afterwards.
@Jan Thanks your comment. It worked fine when I delete config folder.