[RBASE-L] - Missing letter U

[Alastair Burr]

Can anyone explain this for me, please:

R>SET KEYMAP [Alt]R TO 'RUN D:\DBCopy\Source\CommonCMDs\RPrompt.RMD [ENTER]'

[Press alt-r gives:]

R>RN D:\DBCopy\Sorce\CommonCMDs\RPrompt.RMD
-ERROR- Unrecognized command - retype it ( 40)

Notice the u is missing from run and source! And it is not the only keymap 
that looses U's.

Thanks in advance,
Regards,
Alastair.