auto linking and 'system' layout

Hi, I attempted to use boost built with system layout (vc-7_1) to simplify deployment etc. Unfortunately, my code failed to link as the linker tried to link the date_time libraries with TOOLS and version marks (I'm not sure about other libraries as it was fatal enough:). Is this a known limitation of auto linking? Is there a workaround? I haven't search the documentation real thoroughly but no hints of how to turn auto linking off...:( TIA -- Serge