Hi,

I have had a problem where I put the device into locked mode and don't touch anything for a while ~15 minutes or longer. Then, when I go to unlock the device it will unlock and display the home screen (like normal), however after this point the touch screen does not work and will not register any clicks (the side-buttons still work, but appear sluggish to respond...ie the screen takes a long time to rotate, or it takes a long time for the settings menu to appear).
Also, when I power it off at this point the device does not go through the normal shutdown procedure, it just hard-shuts off and the last page I was reading on the 2nd pane remains visible when it is in the powered off state.

Repowering the device causes it to behave normally again. (annoying, but a workaround at least in the meantime).

Anyone else have this problem?
Any suggestions?