Sorry for disturbing your time.
My problem may be solved.
I tried to start Scilab and quit it a few times, then the display becomes
normal and key strokes work normally.
Thank you.
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View this message in context:
http://mailinglists.scilab.org/Scilab-5-5-2-suddenly-started-uglily-tp4032707p4
I have been normally using Scilab 5.5.2(64-bit) on Windows 7 Professional
64-bit every day until Aug. 18.
However, my Scilab has started uglily as the following picture in the
morning on Aug.19.
I have uninstalled Scilab, downloaded Scilab 5.5.2(64-bit) again and
installed it. But, the situation is