I wanted to add a plug for one of the new features in LabVIEW 7.1. It now offers an enhanced tool that will show where LabVIEW is allocating buffers, and could be really useful for you to see where the allocations occur.
You can read more about it on page 19 of the <a href="http://www.ni.com/pdf/manuals/321780f.pdf";>LabVIEW Upgrade Notes</a> Evan National Instruments
