Kills my memory

I had this installed for months. Worked fine. Then suddenly, it was taking up all of my RAM (16GB). Whenever I clicked on the icon, I got the spinning beach ball. Repaired permissions, etc., all OK, but memory would continually go down to 0 and the computer would freeze. Used the Activity Monitor to stop it, then deleted it from Applications. All OK since then. Re-installed a new version from the App Store. Same problems, same solution. Sorry, this once-useful tool is not wortht the aggravation that it has caused me.

SashineB about Calendars, v1.8