diff --git a/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl b/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl
index b9bd8dce..51efa948 100644
--- a/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl
+++ b/site_ansto/instrument/reflectometer/config/motors/motor_configuration.tcl
@@ -902,29 +902,31 @@ make_gap_motors ss3hg gap ss3ho offset ss3r ss3l mm $slit3HGroup
 make_gap_motors ss4vg gap ss4vo offset ss4u ss4d mm $slit4VGroup
 make_gap_motors ss4hg gap ss4ho offset ss4r ss4l mm $slit4HGroup
 
-proc ds_set_two_theta { arg } {
-  set rad [expr ($arg/180.0)*3.1415926535897932384626433832795]
-  set d1 [expr [SplitReply [detector_distance]] - [SplitReply [sample_distance]]]
-  set d2 [expr [SplitReply [slit4_distance]] - [SplitReply [sample_distance]]]
-  set h1 [expr [SplitReply [detector_base]] + $d1 * tan($rad)]
-  set h2 [expr [SplitReply [slit4_base]] + $d2 * tan($rad)]
-  return "dz=$h1,st4vt=$h2"
-}
-publish ds_set_two_theta user
-
-proc rs_get_two_theta {} {
-  set d1 [expr [SplitReply [detector_distance]] - [SplitReply [sample_distance]]]
-  set h1 [expr [SplitReply [dz]] - [SplitReply [detector_base]]]
-  return [expr (180.0*atan2($h1, $d1))/3.1415926535897932384626433832795]
-}
-publish rs_get_two_theta user
-
-MakeConfigurableMotor two_theta
-two_theta readscript rs_get_two_theta
-two_theta drivescript ds_set_two_theta
-sicslist setatt two_theta klass sample
-sicslist setatt two_theta long_name two_theta
-sicslist setatt two_theta units degrees
+# The configurable two_theta motor may have been made obsolete
+# by the commands.tcl:omega_2theta command 26/8/08
+#proc ds_set_two_theta { arg } {
+#  set rad [expr ($arg/180.0)*3.1415926535897932384626433832795]
+#  set d1 [expr [SplitReply [detector_distance]] - [SplitReply [sample_distance]]]
+#  set d2 [expr [SplitReply [slit4_distance]] - [SplitReply [sample_distance]]]
+#  set h1 [expr [SplitReply [detector_base]] + $d1 * tan($rad)]
+#  set h2 [expr [SplitReply [slit4_base]] + $d2 * tan($rad)]
+#  return "dz=$h1,st4vt=$h2"
+#}
+#publish ds_set_two_theta user
+#
+#proc rs_get_two_theta {} {
+#  set d1 [expr [SplitReply [detector_distance]] - [SplitReply [sample_distance]]]
+#  set h1 [expr [SplitReply [dz]] - [SplitReply [detector_base]]]
+#  return [expr (180.0*atan2($h1, $d1))/3.1415926535897932384626433832795]
+#}
+#publish rs_get_two_theta user
+#
+#MakeConfigurableMotor two_theta
+#two_theta readscript rs_get_two_theta
+#two_theta drivescript ds_set_two_theta
+#sicslist setatt two_theta klass sample
+#sicslist setatt two_theta long_name two_theta
+#sicslist setatt two_theta units degrees
 
 proc motor_set_sobj_attributes {} {
 }