[racket] DrRacket init file on WIndows 8

Finally it is time to teach programming to my kid!

I've installed DrRacket 6.1.1 [3m] on Windows 8, added atom? function 
and saved it as racketrc.rktl



But DrRacket does not load it at startup. I confirmed like below:

 > (find-system-path 'init-file)
#<path:C:\Users\Jongwon\racketrc.rktl>

 > (define in (open-input-file "C:\\Users\\Jongwon\\racketrc.rktl"))
 > in
#<input-port:C:\Users\Jongwon\racketrc.rktl>


Any ideas?


Thanks!

- Jongwon