Problem typing shift+enter in windows 8 tablets

I just purchased a windows tablet HP with full windows 8 functionality. I installed Mathematica 9.1 and find troublesome that the enter key is executing the processing just like the shift+Enter key . I am not able to add another line in the cell either. There is a similar post, but their problem was the lock-num key. But this tablets do not have a number keypad or num-key . Please advice.

I am not familiar with the issue myself, but if you believe the issue has something to with the state of the numlock key in Windows 8, you may want to consider activating it on boot. Looking online, there are some websites with tutorials on how to do this. For example,
http://thetechjournal.com/how-to/tutorial-how-to-activate-numlock-upon-boot-in-windows-8.xhtml
Please be careful whenever editing the registry on your machine. I have not tried the tutorial here and cannot vouch for its safety or effectiveness.
If this does work for you, please come back and let us know.

Thank you for your contribution. After close look , the bottom line is that if the device keyboard does not have a NuLk key, Mathematica replaces assigns the Enter key to Shift-Key (execute). This is a tremendous inconvenience. Anyhow. I choose to solve this problem by adding a supplemental usb numerical keypad or just add a full usb keyboard.

You can try setting the following in the registry:

HKEY_CURRENT_USER\SOFTWARE\Wolfram Research\Mathematica
“DisableKeypadEnter”=DWORD:1

Ian