Hi David As shown by locate in my previous message, mozilla is installed and the library is there. For more detail: # rpm -q mozilla mozilla-1.7.8-2 However it seems that yelp is not able to find it. I get: # ldd $(which yelp) ... libgtkembedmoz.so => not found libxpcom.so => not found ... yelp worked before but at some point it stoped working. I have not realized exactly when, and hence I do not know what could have broken it. So, I need advice to make yelp work again. Alejandro -- This is an email sent via the webforum on http://fcp.homelinux.org http://fcp.homelinux.org/modules/newbb/viewtopic.php?post_id=97488&topic_id=23388&forum=23#forumpost97488