<P>lseek(), <A HREF="../../lib/Pod/perlfunc.html#item_tell"><CODE>tell()</CODE></A> and <A HREF="../../lib/Pod/perlfunc.html#item_sysseek"><CODE>sysseek()</CODE></A> only work with files opened in binary mode.</P>
<P>The text/binary issue is covered at length in the Cygwin documentation.</P>