diff --git a/twander.py b/twander.py
index 9852926..2169822 100755
--- a/twander.py
+++ b/twander.py
@@ -4,7 +4,7 @@
 
 
 PROGNAME = "twander"
-RCSID = "$Id: twander.py,v 1.88 2002/12/01 22:16:10 tundra Exp $"
+RCSID = "$Id: twander.py,v 1.89 2002/12/04 22:48:03 tundra Exp $"
 VERSION = RCSID.split()[2]
 
 
@@ -18,6 +18,7 @@
 from socket import getfqdn
 from stat import *
 import sys
+import thread
 import time
 
 from Tkinter import *
@@ -685,7 +686,7 @@
         cmd = cmd.replace(DIRNAME, UI.CurrentDir)
 
         # Actually execute the command
-        os.system(cmd)
+        thread.start_new_thread(os.system, (cmd,))
     
 # end of 'KeystrokeHandler()'
     
@@ -708,7 +709,7 @@
 
     cmd = askstring(pRUNCMD, pENCMD)
     if cmd:
-        os.system(cmd)
+        thread.start_new_thread(os.system, (cmd,))
     UI.DirList.focus()
 
 # End of 'ChangeDir()'
@@ -944,7 +945,7 @@
         os.startfile(os.path.join(os.path.abspath(UI.CurrentDir), selected))
 
     elif OSNAME == 'posix':
-        os.system(os.path.join(os.path.abspath(UI.CurrentDir), selected) + "&")
+        thread.start_new_thread(os.system, (os.path.join(os.path.abspath(UI.CurrentDir), selected),))
 
 
     # Have to update the window title because selection changed