Email reminders sent for closed issues.

Hi All

Our Redmine is sending email reminders for issues due in the next 7 days even for closed issues. Hoping that version 1.1.2 would fix this, we recently upgraded from 1.0.5 to 1.1.2 but we are still getting reminders for closed issues.

Anybody else has this problem? Any solution?
Thank you very much in anticipation.