My Apllication contains a Sheridan
Command Button and a MSflexgrid
that become invisible for no apparent
reason,(i.e. it is
possible to see the parent form's
back colour through the control).
I cannot seem to control this behaviour.

N.B. clicking a flex grid row reverts
that row to its intended colour. Taking the
form out of focus or refreshing the grid corrects
the whole grid

The visible property of the controls is set to true
I have many other sheridan buttons and flex grids
who do not show this behaviour