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stm32f429Idiscovery demo touchscreen bug

Question asked by julien.staub on Dec 4, 2013
Latest reply on Dec 6, 2013 by Clive One
Today I bought one of  these new stm32f429 discovery boards :

For the moment I only launched the demo software, but it seems that the tuchscreen is abnormally inaccurate (less precise than the one of my colleage). For example in the calendar, when my pen is on the 22 of the month, the red square moves between the 18 ant the 21.

Has someone experienced the same problem ? 
Is there a way to callibrate the touchscreen ?
Some pins were creased when I got the board, could a shock during transport have killed  the touchscrean ? (In this case I will try to exchange the board)