Hi Larry,

"...I just re-installed the March 12 revision, and the CRC
icon was inserted into the toolbar..."

Yup, that's a bug. I think I've just fixed it. I will
definitely want it fixed before I re-post the update.

"...BTW, I normally use the large icons because they show
view size as well as level number."

The one small flaw with this is that one can reset the level
sizes. Still, this appears to be a rare activity; I don't
expect to remove the field sizes from those icons.

-- Bill