Index: openacs-4/packages/xotcl-core/tcl/context-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-core/tcl/context-procs.tcl,v
diff -u -r1.41 -r1.42
--- openacs-4/packages/xotcl-core/tcl/context-procs.tcl	27 Sep 2008 17:18:39 -0000	1.41
+++ openacs-4/packages/xotcl-core/tcl/context-procs.tcl	1 Oct 2008 10:12:14 -0000	1.42
@@ -439,7 +439,7 @@
   
   ConnectionContext instproc set_parameter {name value} {
     set key [list get_parameter $name]
-    if {[my cache_exists $key]} {my cache_delete $key}
+    if {[my cache_exists $key]} {my cache_unset $key}
     my set perconnectionparam($name) $value
   }
   ConnectionContext instproc get_parameter {name {default ""}} {