I have 8 machines attached to Boinctasks. Itself, 6 other Windows 10 PCs, and an Android 7 phone. One of the PCs is old and tired and often crashes or doesn't respond. Why does this lock up Boinctasks? The whole screen goes blank, the menus are inoperative, and task manager reports it's using an entire CPU core. What on earth is it doing? Surely if there's no response from one machine, just display the others?