Here's an example: 0003111

Patch to fix this attached below (wrapping might mangle it, but you get the idea. Pass t_vhostpath down into string_get_bug_view_link and prepend it to the url passed in, so the vhost path is absolute):

--- /src/cvs/mantisbt/core/string_api.php 2003-03-22 09:01:04.000000000 -0500
+++ core/string_api.php 2003-04-09 10:40:29.000000000 -0400
@@ -282,8 +282,9 @@

return an href anchor that links to a bug VIEW page for the given bug

    #  account for the user preference and site override
    function string_get_bug_view_link( $p_bug_id, $p_user_id=null ) {

• $t_vhostpath = config_get( 'path' );
  $t_summary = string_attribute( bug_get_field( $p_bug_id, 'summary' ) );
• return '<a href="' . string_get_bug_view_url( $p_bug_id, $p_user_id ) . '" title="' . $t_summary . '">' . bug_format_id( $p_bug_id ) . '</a>';

• return '<a href="' . $t_vhostpath . string_get_bug_view_url( $p_bug_id, $p_user_id ) . '" title="' . $t_summary . '">' . bug_format_id( $p_bug_id ) . '</a>';
  }

  # --------------------

Fixed in CVS. Will be available in 0.18.0a5.