please recheck this patch with Mathematica from Wolfram Research - lemme know if...

diff --git a/event.c b/event.c
index ad4e271..9897640 100644 (file)
--- a/event.c
+++ b/event.c
@@ -301,7 +301,8 @@ maprequest(XEvent *e) {
 
        if(!XGetWindowAttributes(dpy, ev->window, &wa))
                return;
-       if(wa.override_redirect)
+       fprintf(stderr, "does the window suck? %s\n", wa.map_state == IsViewable ? "no" : "yes");
+       if(wa.override_redirect || wa.map_state != IsViewable)
                return;
        if(!getclient(ev->window))
                manage(ev->window, &wa);