Alternative possibility: Your command windows open at a certain default path (was the case on my system, don't ask me why the hell it was there). Command windows inevitably will start at a directory specified by a variable which is most likely the wrong path since it won't contain the files/commands. So if that's the case
-either manually edit (New_)UI.bat and insert the correct drive specification (=the one with RTW installed) and directory of install in DOS format above the first command line:
[drive with RTW install]:
cd [directory\...\directory with RTW install]
(not sure about the second line, probably you can leave it out)
-or delete the default path variable. To do this, open work station->advanced->variables and then change or delete the line which reads 'default_command_window_path' or the like.
As SquidSK said. In case you already successfully ran the game before you should try looking for preferences with 1 'r'
