Screen - Checking for Update

I have been experiencing an issue where a trend/application is displaying and updating then with no interaction the screen goes to the Axiom screen with "Checking for Update" and the green bar displayed then it returns to the previous trend screen.  Trying to determine the cause of this along with at times when it does this when the display comes back it is no longer updating even though the pause button is displayed  - to get the trend updating again I normal push the pause then push the run button.