Blankscreen
Joan, if you don't have DEVS on your Extras disk then you have a mighty
strange Extras disk. I wonder if (after selecting Show .. All Files from the
Windows menu), the DEVS drawer is outside the area of your Extras window? Do
you know how to scroll a window (and recognize when it needs scrolling)?
Meanwhile, you can check for DEVS this way. Put the Extras disk into DF0:
and then command DIR or LIST. With either command, you should see a directory
called DEVS. If it's missing, we may need to find out why (and likely get you
a replacement Extras disk).
–Jim