Sometimes Word or Windows will 'switch' keyboard layouts.
In the Windows control panel see if unselecting then reselecting
the correct keyboard layout in Keyboard/Locale helps. If you
have the Keyboard chooser in the system tray with 2 keyboards
selected you may see that the choice has moved down one 'notch'
there.
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When typing question marks or commas the letter e appears and the number keys
do not work on the number pad. >>
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Let us know if this helped you,
Bob Buckland ?

MS Office System Products MVP
*Courtesy is not expensive and can pay big dividends*
Office 2003 Editions explained
http://www.microsoft.com/uk/office/editions.mspx