Thanks Andre.. that did it.. it's actually not bad at all if I do
\widehat{\Sigma}_y instead of the subscript inside the widehat.
Thanks,
nirmal
> \widehat{\sigma_h}
>
> But this does not look much better...
>
> Andre'
>
> --
> Those who desire to give up Freedom in order to gain Security,
> will not have, nor do they deserve, either one. (T. Jefferson)
>
