The memory issue has been solved!
After paying $50 @ SWS, it turns out that I had too many wireless devices connected to my PC. One for the new tablet, one for the Internet, one for the mouse and keyboard, so once I went back to wired keyboard mouse and tablet, the error disappeared.
This problem started around the time I acquired the wireless/corded Huion tablet, which BTW is a great drawing board, and I plugged in the wireless dongle. It was a slow problem that took sometime to come forward, but I’m glad it is over. I can’t believe this would give me so much trouble, so I’m now a firm believer in keeping it wired!