diff --git a/vmd/src/vmd.C b/vmd/src/vmd.C
index f1bd8a7..09d723e 100644
--- a/vmd/src/vmd.C
+++ b/vmd/src/vmd.C
@@ -165,12 +165,12 @@ void * vmd_resize_alloc(void *ptr, size_t oldsize, size_t newsize) {
 
 extern void VMDupdateFltk() {
 #ifdef VMDFLTK
-#if (defined(__APPLE__)) && defined(VMDTCL)
+//#if (defined(__APPLE__)) && defined(VMDTCL)
   // don't call wait(0) since this causes Tcl/Tk to mishandle events
-  Fl::flush();
-#else
+  //Fl::flush();
+//#else
   Fl::wait(0);
-#endif
+//#endif
 #endif
 }