Rmagick woes

hi all
been using rmagick fine on mylocal machine. but when i try to crop on the server myrails app dies with thefollowing error:
can’t convert Magick::GravityType into Integer

gooogling revealed that this isprobably bcause of an old version of thegem installedon dreamhost. tried to install a new version via gem install rmagick but am getting permission denied errors.

the dreamhost wiki says ask support to install the gem. support says they’re “not currently making any gem updates at the server level so you will need to install your own local gem”.

so any idea/help would be appreciated.