Am 22.02.2015 um 18:56 schrieb John Culleton <John@wexfordpress.com>:

On Sun, 22 Feb 2015 15:57:48 +0100
Pablo Rodriguez <oinos@gmx.es> wrote:

On 02/22/2015 01:55 PM, John Culleton wrote:
On Sat, 21 Feb 2015 14:16:31 -0500 Aditya
Mahajan wrote:
[...]
There should be a comma after 0.1.

With respect, I don't think so. Commas
separate parameters. the last "0.1" is
properly followed by a "]".

Hi John,

this should work:

\setupframed[framecorner=round,
frameradius=0.1em,
background=screen,
backgroundscreen=0.70,
backgroundcorner=round,
backgroundradius=0.1em,
corner=round,
radius=0.1em]

Radius, framedradius and backgroundradius
expect dimensions as values, not mere numbers.

BTW, having a sample that shows the problem
increases the reply speed :-).

I hope it helps,

Pablo
You had the cure.

I built a sample and then played with the em
value. Lacking precise guidance I thought that
the value was one of those 0 to 1 ranges. Not so.
setting at 1.0 em gives me what I was looking
for. The setting 0.1 em gave me rounding that was
imperceptible without magnification.

Here is my successful sample:
-------------------------------------
\setupframed

Use \setupframedtext to change the layout of \startframedtext.

[framecorner=round,
frameradius=1em,

The “frameradius” setting can be omitted because you set “radius”.

background=screen,
backgroundscreen=0.70,
backgroundcorner=round,
backgroundradius=1em,

The “backgroundcorner” and “backgroundradius” settings can be omitted as well because you set “corner” and “radius”.

corner=round,
radius1em]