Touch screen not responding accurately, possible to align the coordinates?

HI,

I have been using the touch screen for quite some time, notice that the touch accuracy is moving mis-align, and it seems to get worse over time.

For instance, on the screen, of I touch the left, it ends up selecting something in the middle, looks like some type of touch alignment issues. Like touching the maintenance-1 button end up selecting maintenance-3 option.

Any way to correct this?

Thanks!

rgds
KwaiSeng