My x10 mini got soaked in tea a few weeks ago. I dried it in a bowl of rice, it charges, turns on and all the buttons respond well. However the touch screen only responds every so often, it's about 50/50. For instance if I tap in a phone number it'll take half the numbers immediately and ignore the other half. I have updated the software and that didn't help. Could anyone tell me which part of the hardware could be the most likely cause of the issue?