Right now, I reckon this is not related to my computer.

Here is what you asked for. 1 is with it working and the other is after it has decided to not work any longer.
It takes me about 5 minutes to get it to the stage where it stops working.
Quite spectacular.

Someone else should try and reproduce it. The _BG_BAND is a good start.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
CPU use working.PNG (41.73 KB, 100 downloads)
CPU use NOT working.PNG (38.67 KB, 100 downloads)

Band in a Box
Latest: ULTRA 2020 (734) on Win 10
And: MEGA 2020 (720) on Windows 7