using the design tool of lines of calligraphy or brush strokes are created lines cross the screen.
Can't reproduce in Ubuntu Linux 8.10 Seems to be a Windows-only problem.
I can't reproduce it in Windows XP sp3 (build 21167) either. Which Windows version are you using? And which Inkscape build?
Width is 100 by default, plz change width of tool and repeat test.
A largura da ferramenta esta em 100, faça novamente o teste mudando a largura... se por padrão esta vindo assim é um bug, acho que vi este report bug em algum lugar.
fix was committed in rev. 21748 by Krzysztof Kosiński, see bug #390162
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Can't reproduce in Ubuntu Linux 8.10
Seems to be a Windows-only problem.