--- event.c 2011-09-04 00:56:44.538509277 +0200
+++ event.c.new 2011-09-04 01:03:30.073849536 +0200
@@ -45,7 +45,7 @@
      for(; i < n; ++i)
      {
           if(m[i].screen == screen || m[i].screen < 0)   /* Screen   */
-               if(m[i].tag == seltag[i] || m[i].tag < 0) /* Tag      */
+               if(screen_count() > i && m[i].tag == seltag[i] || m[i].tag < 0) /* Tag      */
                     if(m[i].button == button)            /* Button   */
                          if(m[i].func)                   /* Function */
                               m[i].func(m[i].cmd);