Calculate Mate no longer informs me of updates

Hi all,
Since moving Calculate MATE to my main laptop it no longer informs me of available updates. With my previous install there was an icon and associated popup every time an update was available (usually several times a week). The icon is no longer in my panel and i have to check for myself whether updates are available. Not a biggie, and probably just a setting change needed somewhere, but i have yet to find it. I liked the update reminder. Is there a place where i can switch it back "on"? Thx.