[imp] IMP 5x : how to activate preview of email ?

[Bruno Costacurta]

> how to activate the preview of email for IMP 5x ?
> Note : with Horde 3 + IMP 4x I got it, but cannot find or remember how
> I activated it.
>

Sorry for confusion, by 'preview' I mean when mouse-over on the  
subject of the email.
By default, the subject is again displayed when mouse-over on the  
subject .. which is quite redundant.

Is there a way to have same as previous H3 with preview of the mail  
body when mouse-over the subject in the emails folder ?
Thanks.

Bye,
Bruno.