diff --git a/bochs/iodev/pci.cc b/bochs/iodev/pci.cc
index 8775c1e87..72e22eedb 100644
--- a/bochs/iodev/pci.cc
+++ b/bochs/iodev/pci.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: pci.cc,v 1.35 2004-07-11 20:38:48 vruppert Exp $
+// $Id: pci.cc,v 1.36 2004-07-12 18:16:16 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 //
 //  Copyright (C) 2002  MandrakeSoft S.A.
@@ -327,6 +327,8 @@ bx_pci_c::pci_write(Bit8u address, Bit32u value, unsigned io_len)
 
   Bit8u value8;
 
+  if ((address >= 0x10) && (address < 0x34))
+    return;
   if (io_len <= 4) {
     for (unsigned i=0; i<io_len; i++) {
       value8 = (value >> (i*8)) & 0xFF;
diff --git a/bochs/iodev/pci2isa.cc b/bochs/iodev/pci2isa.cc
index 85ff09e93..2b64342c3 100644
--- a/bochs/iodev/pci2isa.cc
+++ b/bochs/iodev/pci2isa.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: pci2isa.cc,v 1.18 2004-07-08 18:45:03 vruppert Exp $
+// $Id: pci2isa.cc,v 1.19 2004-07-12 18:16:16 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 //
 //  Copyright (C) 2002  MandrakeSoft S.A.
@@ -361,6 +361,8 @@ bx_pci2isa_c::pci_write(Bit8u address, Bit32u value, unsigned io_len)
 
   Bit8u value8;
 
+  if ((address >= 0x10) && (address < 0x34))
+    return;
   if (io_len <= 4) {
     for (unsigned i=0; i<io_len; i++) {
       value8 = (value >> (i*8)) & 0xFF;