Keyboard acting funny?
If you're ever typing on the Ref Desk computer and your G's type as I's, and your H's type as D's, the keyboard settings may have been switched to "United States-Dvorak", an alternative key layout that at least one staff member (not me) may be experimenting with. You can switch the settings back to the normal QWERTY mode using the keyboard icon on the taskbar (lower right).
For more information about the Dvorak layout, see this Wikipedia entry: http://en.wikipedia.org/wiki/Dvorak_Simplified_Keyboard