It was great until it started popping up way to frequently for no reason, and also the pop up was blank. Nothing on it. Just a white little window. I uninstalled and reinstalled but for some reason that won't fix it. I paid for this app on all of the computers here at the university...had to pay for it 5 times for each computer then 1 more time for mine. Mine is the only one experiencing this blank window error. This has helped the students so much in keeping organized and actually hearing the "CALENDAR REMINDER" notification loud and clear so they get up to check it. We never miss an appointment now. Thank you for this app. Please fix the issue.