Do not try to load the 6/29 update of WP5.1 on DEC Rainbow under Code Blue.
Seems to be something about the screen driver that it doesn't like. At any
rate, I got hung up. Now back to January release, which works just fine.
Also discovered that I drive needs to be dusted out with compressed air
from time to time or it also will hang. If you know how to work around the
6/29 problem, please let me know. Thanks.