Re: Minos2 terminal bug: rapidly repeated clear-and-redraw cau ses missed drawing

Possibly also relevant: blocked's QX command output is also mangled. (I'm not sure whether to file this as a separate bug.) Only 5 of the expected 60 entried are visible, although 'ok' appears in the expected place. 

Aha! Everything after the highlight is blank. If the current block is block 5, there's 5 entries, if block 4, 4 entries, if 30, 30, etc. 

To reproduce:
<copy blocked.fb blocks.fb>
use blocks.fb
1 load
qx

To reproduce the multi-redraw bug:
<as above except qx>
10 l
1 q 2 c i foo