Thanks for your inquiry. ~ We appreciate your patience :-)
There is a new POT translation file released with each version of s2Member®. While most releases do not make any significant changes to this file, our last two releases of s2Member v130213 and v130214 did. If you are upgrading to one of these latest releases, you will need to update any translations that you performed in past versions. In the case of Pro Forms, we removed spaces from these strings.
Username ( lowercase letters and/or numbers )
Is now: Username (lowercase letters and/or numbers)
Password ( type this twice please )
Is now: Password (type this twice please)
Another problem, is there a way to not transfer the .mo file every time there is an update of s2member, i’ve been forced to upload the file 3 time this las 10 days.
I assume that you placed your MO file into the /s2member/includes/translations/ directory?
If so, you can avoid doing this each time, by placing it here instead: /wp-content/plugins/
s2Member® will find it in either place.