Index: branches/release-30/lib/MT/ObjectDriver/Driver/Cache/RAM.pm
===================================================================
--- branches/release-30/lib/MT/ObjectDriver/Driver/Cache/RAM.pm (revision 1413)
+++ branches/release-30/lib/MT/ObjectDriver/Driver/Cache/RAM.pm (revision 1415)
@@ -34,5 +34,5 @@
 
     if (scalar keys %Cache > MAX_CACHE_SIZE) {
-        %Cache = ();
+        $driver->clear_cache();
     }