Operating system is Windows 7 Enterprise, Illustrator is CC 2018 or 2019. I begin to work for only 15 sec and then the program pauses with the blue spinning wheel. If I click again the screen shows a (not responding) title at the top and goes grey. This process takes another 15 sec and then snaps back into place and works again, but only for another 15 sec and repeats. I've opened and closed the program several times and also restarted the computer but no change. This only happens in Illustrator and no other CC programs I use. Any ideas would greatly help. Thanks