Dsesktop Config Files opened by the wrong application

Allready had that, and I had thought I had found the solution... Happened on two different machines running Debian 9 and TDE (lastest stable): I have links on my desktop (created with right-click/crate new/link to device. One is a link to a local URL Two are links to network shares (nfs) The problem is that when I click on them, instead of opening konqueror, it opens Audacious (that then tries to, first, make a database of all the files and then to play them, which obviously fails). It *has* worked correctly before. On a machine where it works correctly File association shows nothing for *.desktop and *.kdelink; I thought I had solves it once by setting the association with konqueror but it does not seem to work. Acces from konqueror works fine. Thierry