R help - Jul 2014 - Windows R doesn't recognize shortcuts ?

Hi All,

In Windows 7 , R installation:

R version 3.1.1 Patched (2014-07-14 r66149) -- "Sock it to Me"
Copyright (C) 2014 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)

it doesn't recognize shortcuts in path :
>  list.files(path = "cygwin")
character(0)

cygwin is a shortcut,  in properties window  Target shows :
C:\Users\me\cygwin64\home\me
Real path works :

list.files(path = "C:/Users/me/cygwin64/home/me")
  [1] "1010week.sh"            "10week.sh"             
"a.R"                    "aa.sh"
....