On Nov 25, 2011, at 8:33, Pinit Asavanuchit <pinit / intersol.co.th> wrote:

> I have install ruby-1.9.1 via Macport long time ago. I have upgrade to
> 1.9.3 via macport but gem environment show that  INSTALLATION DIRECTORY
> and GEM PATHS still point to 1.9.1
> 
> Please help I can't find how to correct it.

There is nothing to correct. That's the abi compatibility version.