i'm trying to upgrade my blackberry from 4.1.0.323 (pre-installed when device was new) to 4.2.x version...

i am a mac user but i also have a windows machine - so i am using the windows machine to install the latest desktop manager however i have not been given the possibility of upgrading to the new OS when the manager app launches.

i followed the instructions on this post inc deleting the apploader file, when the manager runs i get a message saying "the mail system access module found at...is incompatible...please re-install the desktop tools"

so, should i attempt to re-install this module or is the 4.2.x OS not workable on the 7130?

with thanks...