>I did copy a paste to this line:
>

thisform.grd1.column2.DynamicBackColor='iif(field='xxx',RGB(255,64,64),RGB(255 ,255 ,255 ))'

>I got a message 'syntax error' on this line when I try to save the form.

You cannot use a single quote inside a literal that's enclosed into single quotes by itself. Use another string literal delimiter.

thisform.grd1.column2.DynamicBackColor = [iif(field='xxx',RGB(255,64,64),RGB(255 ,255 ,255 ))]