diff --git a/src/xschem.tcl b/src/xschem.tcl
index 4e8ef325..436b61aa 100644
--- a/src/xschem.tcl
+++ b/src/xschem.tcl
@@ -3101,9 +3101,12 @@ proc tclpropeval2 {s} {
     regsub {^([^xX])} $path {x\1} path
     while { [regsub {\.([^xX])} $path {.x\1} path] } {}
   }
-  if { [sim_is_xyce]} {
-    regsub -all {\.} [string toupper $path] {:} path
-  }
+  
+  ## no more necessary, ':' are converted to '.' when reading raw file */
+  #  if { [sim_is_xyce]} {
+  #    regsub -all {\.} [string toupper $path] {:} path
+  #  }
+
   if { $debug_var<=-1 } { puts "---> path=$path" }
   regsub {^tcleval\(} $s {} s
   regsub {\)([ \n\t]*)$} $s {\1} s
diff --git a/xschem_library/examples/poweramp.sch b/xschem_library/examples/poweramp.sch
index 201e3d2f..943a9475 100644
--- a/xschem_library/examples/poweramp.sch
+++ b/xschem_library/examples/poweramp.sch
@@ -19,8 +19,8 @@ B 2 1200 -500 1880 -310 {flags=graph
 y1 = -0.0059
 y2 = 11
 divy = 6
-x1=0.0125703
-x2=0.0132608
+x1=0.0457674
+x2=0.0462507
 divx=10
 node="i(v.x1.vu)
 i(v.x0.vu)
@@ -32,8 +32,8 @@ B 2 1200 -830 1880 -520 {flags=graph
 y1 = -49
 y2 = 59
 divy = 12
-x1=0.0125703
-x2=0.0132608
+x1=0.0457674
+x2=0.0462507
 divx=10
 node="outp
 outm
@@ -47,8 +47,8 @@ B 2 1200 -1020 1880 -830 {flags=graph
 y1 = 2.4e-11
 y2 = 840
 divy = 6
-x1=0.0125703
-x2=0.0132608
+x1=0.0457674
+x2=0.0462507
 divx=10
 
 
@@ -60,8 +60,8 @@ B 2 1200 -310 1880 -120 {flags=graph
 y1 = 0.0077
 y2 = 850
 divy = 6
-x1=0.0125703
-x2=0.0132608
+x1=0.0457674
+x2=0.0462507
 divx=10
 
 
@@ -313,16 +313,13 @@ C {spice_probe.sym} 660 -1200 0 0 {name=p42 analysis=tran voltage=0.0000e+00}
 C {spice_probe.sym} 670 -1120 0 0 {name=p43 analysis=tran voltage=0.0000e+00}
 C {spice_probe.sym} 950 -1200 0 0 {name=p44 analysis=tran voltage=0.0000e+00}
 C {launcher.sym} 1000 -270 0 0 {name=h1
-descr=Backannotate
-tclcommand="ngspice::annotate"}
+descr="Backannotate
+(ngspice)"
+tclcommand="ngspice::annotate $netlist_dir/poweramp_op.raw"}
 C {ngspice_get_expr.sym} 130 -1010 0 0 {name=r19 
 node="[ngspice::get_current \{r9[i]\}]"
 descr = current
 }
-C {launcher.sym} 1000 -310 0 0 {name=h4
-descr="View Raw file" 
-tclcommand="textwindow $netlist_dir/[file tail [file rootname [ xschem get schname 0 ] ] ].raw"
-}
 C {spice_probe.sym} 300 -1220 0 0 {name=p45 analysis=tran voltage=49.84}
 C {spice_probe.sym} 300 -1060 0 0 {name=p46 analysis=tran voltage=-49.86}
 C {launcher.sym} 1145 -1165 0 0 {name=h5 
@@ -353,8 +350,7 @@ vvss vss 0 dc 0
 .control
 save all
 op
-write poweramp.raw
-set appendwrite
+write poweramp_op.raw
 tran  8e-7 0.07 uic
 * .FOUR 20k v(outm,outp)
 * .probe i(*)