custom header separators

Hi,

I need to make the header separator of the last column of the grid invisible. I've tried:

#gridId .aw-grid-separator-{actual column number} {display: none;}  It does'nt work, allthough the following knocks off all the separators:

#gridId .aw-grid-separator {display: none;}  Any ideas?

Many thanks,

Try

#gridId-separator-0 {display: none;}