dmd 1.074 and 2.059 release

[Joel]

This program doesn't work.

import std.stdio;

void main() {
     writeln(1);
}

I get this:
C:\jpro\dpro2\small>dmd dmd59.d
OPTLINK (R) for Win32  Release 8.00.12
Copyright (C) Digital Mars 1989-2010  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
dmd59.obj(dmd59)
  Error 42: Symbol Undefined _D3std3utf6toUTF8FNaNbNfJG4awZAa
--- errorlevel 1

C:\jpro\dpro2\small>_

Is it to do with qualifiers?

Thanks for any help.

-joelcnz