Touch screen stopped working on TFT01-2.4

Hello, I have TFT01-2.4 shield and I successfully managed to get URTouch working and I tested the program URTouch_ButtonTest. Then I uploaded a differrent sketch and after uploading URTouch_ButtonTest again the touchscreen is not working anymore(the display shows the buttons but it does not react on touching them).

Does anybody know where the problem might be?

Thanks

Vaclav

I don't know why but reset of Arduino helped. Vaclav