Oscar> According to the Lisp and C backtraces and the description you give, the Oscar> problem is certainly not in your LDAP libraries: there's no call to the LDAP Oscar> routines involved in what you describe. So I don't think UMich libs will help Oscar> in any way. The problem seems to be rather related to Custom instead. Oscar> Something might be wrong in the definition of ldap-host-parameters-alist but Oscar> that should never trigger a crash anyway. Oscar was right. It's not ldap. In a private letter, he suggested turning off dialog boxes via (setq use-dialog-box nil). When I do this, xemacs doesn't crash. So it must be some motif bug that shows up Solaris 2.7, because I didn't have this problem on 2.5.1. I'll try to track this down a bit more, but X programming is Greek to me. Ray