I have been Using RTM in Thunderbird with the RTM Provider for about 2 months. Its extremely helpful keeping me on task. I recently had to re-install Ubuntu and once i got everything set up i received the activation notice from RTM. So i copied the URL over and tried to activate it and i got nothing. Is there a limit as to how many computers you can activate using RTM Free? I only have 2 Dual Boot PC's with Ubuntu and XP and i use RTM on both. Can anyone help me? Thanks a bunch.