diff --git a/unix/vncserver b/unix/vncserver
index a6c890f..687ef72 100755
--- a/unix/vncserver
+++ b/unix/vncserver
@@ -208,7 +208,8 @@ if ((@ARGV > 0) && ($ARGV[0] =~ /^:(\d+)$/)) {
     $displayNumber = $1;
     shift(@ARGV);
     if (!&CheckDisplayNumber($displayNumber)) {
-	die "A VNC server is already running as :$displayNumber\n";
+        warn "A VNC server is already running as :$displayNumber\n";
+        $displayNumber = &GetDisplayNumber();
     }
 } elsif ((@ARGV > 0) && ($ARGV[0] !~ /^-/) && ($ARGV[0] !~ /^\+/)) {
     &Usage();