>>- define a MyPICTURE image class
>>- add a Refresh method
>>

>>* Grid Init
>>THIS.NewColumn.dynamicFontShadow = "This.NewColumn.MyPICTURE.Refresh()"
>>* MyPICTURE.refresh
>>this.Picture == IIF( MyValue, "C:\path\Image1.ico", "C:\path\Image2.ico")
>>

>
>Would this work
>
>this.picture = MyTable.MyPictureFileWithPath and using the regular image class with refresh() method coded directly in the form?

Image BaseClass have't refresh method.
You can use the Columnrefresh, but don't forget NODEFAULT

THIS.NewColumn.dynamicFontShadow = "This.NewColumn.Refresh()"
** Col refresh
NODEFAULT
this.myPicture.picture = MyTable.MyPictureFileWithPath