st: Page Up key not properly copying prior command

[Isaac Little <isaac38000@gmail.com>]

Hello
   I have been using the "Page Up" key to run do files multiple times
in succession. When I press the "Page Up" key i see in the command
line the following line, I have omitted the full system directory
because it is quite long.
>> do "G:\Groups\...\Ratios.do"
However when I press enter the line that appears in the viewing window
looks like
>> ddo "G:\Groups\...\Ratios.do"
and I receive an error, r(199), saying that ddo is an unrecognized
command. The initial letter is not always d but is always a letter on
the home row of my keyboard (asdfjkl). If I then use Page Up again,
delete the additional letter, and hit enter the file runs fine. This
problem is not preventing me from running my file, it just is a touch
aggravating and I was wondering if there was a simple way to stop it.

I am running Stata/IC 11.2 for Windows (32-bit)

Thank You,
   Isaac Little
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