if you had an acrobat XI trial installed at some other time, there's no easy way to get another 30 day trial.
if you didn't have it installed before run the cleaner: http://labs.adobe.com/downloads/acrobatcleaner.html
and then re-install.
if you had an acrobat XI trial installed at some other time, there's no easy way to get another 30 day trial.
if you didn't have it installed before run the cleaner: http://labs.adobe.com/downloads/acrobatcleaner.html
and then re-install.