Index: darkplaces/sv_phys.c
diff -u darkplaces/sv_phys.c:1.154 darkplaces/sv_phys.c:1.155
--- darkplaces/sv_phys.c:1.154	Thu Apr  5 04:21:19 2007
+++ darkplaces/sv_phys.c	Thu Apr  5 04:25:54 2007
@@ -2059,7 +2059,9 @@
 		return;
 	}
 
-	SV_ClientThink();
+	// don't run physics here if running asynchronously
+	if (host_client->clmovement_skipphysicsframes <= 0)
+		SV_ClientThink();
 
 	// make sure the velocity is sane (not a NaN)
 	SV_CheckVelocity(ent);