J720 stylus calibration

After a couple of weeks with my J720, I've noticed that the stylus sems to lose its calibration after a short while. Has anyone else experienced this? I've done a search thru the forums, but haven't found anything that adresses this problem.

It's kind of annoying, is there any way to make stylus settings "stick"???

Any suggestions will be appreciated.

Thanks,

it sounds like a hardware problem but before concluding this you should try a hard reset without restoring or reinstalling anything.