R cannot run on Mac 10.2

Hello, I have a question about how to run R on Mac10.2.
Originally, I was using R 1.5.1 on Mac10.1. It worked fine. However, 
after
I upgrade to 10.2, it crashed every time when I start it. Here is the
error message:
dyld: /usr/local/lib/R/bin/R.bin Undefined symbols:
/sw/lib/libreadline.4.2.dylib undefined reference to _tgoto expected to 
be
defin