diff --git a/src/spice_netlist.c b/src/spice_netlist.c
index a9719fda..647cef6d 100644
--- a/src/spice_netlist.c
+++ b/src/spice_netlist.c
@@ -227,6 +227,10 @@ void global_spice_netlist(int global)  /* netlister driver */
    tclgetvar("netlist_dir"), skip_dir(xctx->sch[xctx->currsch]), getpid());
  dbg(1, "global_spice_netlist(): opening %s for writing\n",netl_filename);
  fd=fopen(netl_filename, "w");
+ if(fd==NULL) {
+   dbg(0, "global_spice_netlist(): problems opening netlist file\n");
+   return;
+ }
  fprintf(fd, "** sch_path: %s\n", xctx->sch[xctx->currsch]);
 
  if(xctx->netlist_name[0]) {
@@ -234,10 +238,6 @@ void global_spice_netlist(int global)  /* netlister driver */
  } else {
    my_snprintf(cellname, S(cellname), "%s.spice", skip_dir(xctx->sch[xctx->currsch]));
  }
- if(fd==NULL) {
-   dbg(0, "global_spice_netlist(): problems opening netlist file\n");
-   return;
- }
  first = 0;
  for(i=0;i<xctx->instances;i++) /* print netlist_commands of top level cell with 'place=header' property */
  {
diff --git a/src/tedax_netlist.c b/src/tedax_netlist.c
index 0fe85d1a..9a8751e1 100644
--- a/src/tedax_netlist.c
+++ b/src/tedax_netlist.c
@@ -147,6 +147,10 @@ void global_tedax_netlist(int global)  /* netlister driver */
  my_snprintf(netl_filename, S(netl_filename), "%s/.%s_%d", 
    tclgetvar("netlist_dir"), skip_dir(xctx->sch[xctx->currsch]), getpid());
  fd=fopen(netl_filename, "w");
+ if(fd==NULL){
+   dbg(0, "global_tedax_netlist(): problems opening netlist file\n");
+   return;
+ }
  fprintf(fd, "## sch_path: %s\n", xctx->sch[xctx->currsch]);
 
  if(xctx->netlist_name[0]) {
@@ -155,10 +159,6 @@ void global_tedax_netlist(int global)  /* netlister driver */
    my_snprintf(cellname, S(cellname), "%s.tdx", skip_dir(xctx->sch[xctx->currsch]));
  }
 
- if(fd==NULL){
-   dbg(0, "global_tedax_netlist(): problems opening netlist file\n");
-   return;
- }
  /* netlist_options */
  for(i=0;i<xctx->instances;i++) {
    if(!(xctx->inst[i].ptr+ xctx->sym)->type) continue;
diff --git a/src/verilog_netlist.c b/src/verilog_netlist.c
index 4cdb34ef..d91f811d 100644
--- a/src/verilog_netlist.c
+++ b/src/verilog_netlist.c
@@ -103,6 +103,10 @@ void global_verilog_netlist(int global)  /* netlister driver */
  my_snprintf(netl_filename, S(netl_filename), "%s/.%s_%d", 
    tclgetvar("netlist_dir"), skip_dir(xctx->sch[xctx->currsch]),getpid());
  fd=fopen(netl_filename, "w");
+ if(fd==NULL){
+   dbg(0, "global_verilog_netlist(): problems opening netlist file\n");
+   return;
+ }
  fprintf(fd, "// sch_path: %s\n", xctx->sch[xctx->currsch]);
 
  if(xctx->netlist_name[0]) {
@@ -111,10 +115,6 @@ void global_verilog_netlist(int global)  /* netlister driver */
    my_snprintf(cellname, S(cellname), "%s.v", skip_dir(xctx->sch[xctx->currsch]));
  }
 
- if(fd==NULL){
-   dbg(0, "global_verilog_netlist(): problems opening netlist file\n");
-   return;
- }
  dbg(1, "global_verilog_netlist(): opening %s for writing\n",netl_filename);
 
 
diff --git a/src/vhdl_netlist.c b/src/vhdl_netlist.c
index 4c0af20d..e8fc8008 100644
--- a/src/vhdl_netlist.c
+++ b/src/vhdl_netlist.c
@@ -143,6 +143,10 @@ void global_vhdl_netlist(int global)  /* netlister driver */
    tclgetvar("netlist_dir"), skip_dir(xctx->sch[xctx->currsch]), getpid());
  fd=fopen(netl_filename, "w");
 
+ if(fd==NULL){
+   dbg(0, "global_vhdl_netlist(): problems opening netlist file\n");
+   return;
+ }
  fprintf(fd, "-- sch_path: %s\n", xctx->sch[xctx->currsch]);
 
  if(xctx->netlist_name[0]) {
@@ -151,10 +155,6 @@ void global_vhdl_netlist(int global)  /* netlister driver */
    my_snprintf(cellname, S(cellname), "%s.vhdl", skip_dir(xctx->sch[xctx->currsch]));
  }
 
- if(fd==NULL){
-   dbg(0, "global_vhdl_netlist(): problems opening netlist file\n");
-   return;
- }
  dbg(1, "global_vhdl_netlist(): opening %s for writing\n",netl_filename);
 
  dbg(1, "global_vhdl_netlist(): printing top level packages\n");
diff --git a/xschem_library/examples/poweramp.sch b/xschem_library/examples/poweramp.sch
index 7c87c9d9..3e8be280 100644
--- a/xschem_library/examples/poweramp.sch
+++ b/xschem_library/examples/poweramp.sch
@@ -18,8 +18,8 @@ B 2 1200 -500 1880 -310 {flags=graph
 y1 = -0.0059
 y2 = 11
 divy = 6
-x1=0.0365975
-x2=0.0372189
+x1=0.0119263
+x2=0.0123791
 divx=10
 node="i(v.x1.vu)
 i(v.x0.vu)
@@ -31,8 +31,8 @@ B 2 1200 -830 1880 -520 {flags=graph
 y1 = -49
 y2 = 59
 divy = 12
-x1=0.0365975
-x2=0.0372189
+x1=0.0119263
+x2=0.0123791
 divx=10
 node="outp
 outm
@@ -46,21 +46,21 @@ B 2 1200 -1020 1880 -830 {flags=graph
 y1 = 2.4e-11
 y2 = 840
 divy = 6
-x1=0.0365975
-x2=0.0372189
+x1=0.0119263
+x2=0.0123791
 divx=10
 
 
 unitx=m
 color="4 7"
 node="\\"supply power;i(vcurrvnn) vnn * i(vcurrvpp) vpp * +\\"
-\\"running average supply power;i(vcurrvnn) vnn * i(vcurrvpp) vpp * + 1e-4 ravg()\\""}
+\\"running average supply power;i(vcurrvnn) vnn * i(vcurrvpp) vpp * + 1.0e-4 ravg()\\""}
 B 2 1200 -310 1880 -120 {flags=graph
 y1 = 0.0077
 y2 = 850
 divy = 6
-x1=0.0365975
-x2=0.0372189
+x1=0.0119263
+x2=0.0123791
 divx=10