(I think we all need to provide as much context as possible to help resolving these issues; despite being rather tech-minded, my initial encounter with them made me want to return the device straight away - I couldn't understand why the N900 was utterly unable to retrieve my IMAP email securely when my 2 years old 1st gen iPod touch has no issue whatsoever).
su - user
ps -ef | grep -i modest 2037 user 3936 S /usr/bin/modest -t 30 2038 user 93044 S /usr/bin/modest